tie-linen.

Etymology: < tie- comb. form + line n.²Previous versions of the OED give the stress as: ˈtie-line.

1. Surveying. A line measured on the ground after the principal lines of a triangulated survey have been measured, with the object of checking the accuracy of the work.

ΘΚΠ

the world > the earth > earth sciences > geography > map-making > surveying > [noun] > a survey line > line for checking accuracy

tie-line1877

1877 Rankine Man. Civ. Engin. 24 The accuracy of the measurements in every important triangle should be checked by measuring a ‘tie-line’, from one of its angles to a known point in the opposite side.

2. Telephony. A line connecting two private branch exchanges. Also transferred.

ΘΚΠ

society > communication > telecommunication > telegraphy or telephony > telephony > [noun] > line > types of

private line1852

outside line1861

firewire1883

party line1893

order wire1912

tie-line1923

open line1941

hotline1954

1923 T. E. Herbert Telephony xvii. 437 Should an answering plug be inserted into a jack of the tie line, and the corresponding calling plug be placed into an exchange jack, [etc.].

1955 E. F. Russell Somewhere a Voice (1965) 107 Man is born of Earth and needs a tieline to Earth.

1969 J. Martin Telecommunications & Computer v. 91 Many companies have a leased system of telecommunications lines with switching facilities. To telephone a person in a distant company location, an employee must first obtain the appropriate tie line to that person's private branch exchange.

1978 Broadcast 29 May 9/2 Dring got a phone call out [of Zaire] via the BBC's New York office on tie line to the TV Centre just three minutes before the nine o'clock bulletin went out.

3. A line in a phase diagram joining two points that each represent the composition of two phases in equilibrium with one another.

ΘΚΠ

the world > matter > chemistry > physical chemistry > phases > [noun] > diagram > line on

steam line1879

liquidus1901

tie-line1924

1924 A. E. Hill in H. S. Taylor Treat. Physical Chem. I. ix. 400 No solution therefore can exist having composition indicated by points within the area A–B–C–B′–A′, but such compositions can lead only to two conjugate solutions of composition lying upon the curves at the intersections with the isothermal tie-lines.

1935 Amer. Jrnl. Sci. 229 174 All liquids a–b are in equilibrium with olivine, each with an olivine of different composition as indicated by the tie-lines.

1961 Geol. Mag. XCVIII. 336 (caption) Tie-lines joining co-existing, chemically analysed pyroxenes from igneous rocks.

1979 Nature 3 May 53/2 (caption) Miscibility gap between carbonate and silicate melts... Conjugate liquids at 0·7 kbar and 7·6 kbar are joined by tie-lines.

4. A pipeline or transmission line connecting two distribution systems or two parts of a single system.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electricity > electrical power, electricity > distribution system > [noun] > transmission line

line1886

power line1894

transmission line1906

tie-line1949

society > occupation and work > equipment > conveyor > [noun] > conduit, channel, or tube > pipe > for water > types of

suspiral1420

quillc1433

boss?1521

susper1532

fountain-pipe1664

pump log1816

wash-out1903

tie-line1949

dead leg1953

1949 Sun (Baltimore) 5 July 10/4 With the completion of a 48-inch tie-line..the city Bureau of Water Supply believes it could supply 4,000,000 gallons daily.

1962 Newnes Conc. Encycl. Electr. Engin. 348/1 If two machines [sc. a.c. generators] are to be coupled together by a tie~line perhaps 50 or 60 miles in length, there may be an appreciable impedance presented to the flow of the synchronizing current.

1974 Sci. Amer. Nov. 40/3 Its objective is to maintain the frequency within an area served by several generating stations and to maintain the sum of all active tie-line power exchanges between the area and its neighbors.

This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2019).

单词	tie-line
释义	tie-linen. Etymology: < tie- comb. form + line n.²Previous versions of the OED give the stress as: ˈtie-line. 1. Surveying. A line measured on the ground after the principal lines of a triangulated survey have been measured, with the object of checking the accuracy of the work. ΘΚΠ the world > the earth > earth sciences > geography > map-making > surveying > [noun] > a survey line > line for checking accuracy tie-line1877 1877 Rankine Man. Civ. Engin. 24 The accuracy of the measurements in every important triangle should be checked by measuring a ‘tie-line’, from one of its angles to a known point in the opposite side. 2. Telephony. A line connecting two private branch exchanges. Also transferred. ΘΚΠ society > communication > telecommunication > telegraphy or telephony > telephony > [noun] > line > types of private line1852 outside line1861 firewire1883 party line1893 order wire1912 tie-line1923 open line1941 hotline1954 1923 T. E. Herbert Telephony xvii. 437 Should an answering plug be inserted into a jack of the tie line, and the corresponding calling plug be placed into an exchange jack, [etc.]. 1955 E. F. Russell Somewhere a Voice (1965) 107 Man is born of Earth and needs a tieline to Earth. 1969 J. Martin Telecommunications & Computer v. 91 Many companies have a leased system of telecommunications lines with switching facilities. To telephone a person in a distant company location, an employee must first obtain the appropriate tie line to that person's private branch exchange. 1978 Broadcast 29 May 9/2 Dring got a phone call out [of Zaire] via the BBC's New York office on tie line to the TV Centre just three minutes before the nine o'clock bulletin went out. 3. A line in a phase diagram joining two points that each represent the composition of two phases in equilibrium with one another. ΘΚΠ the world > matter > chemistry > physical chemistry > phases > [noun] > diagram > line on steam line1879 liquidus1901 tie-line1924 1924 A. E. Hill in H. S. Taylor Treat. Physical Chem. I. ix. 400 No solution therefore can exist having composition indicated by points within the area A–B–C–B′–A′, but such compositions can lead only to two conjugate solutions of composition lying upon the curves at the intersections with the isothermal tie-lines. 1935 Amer. Jrnl. Sci. 229 174 All liquids a–b are in equilibrium with olivine, each with an olivine of different composition as indicated by the tie-lines. 1961 Geol. Mag. XCVIII. 336 (caption) Tie-lines joining co-existing, chemically analysed pyroxenes from igneous rocks. 1979 Nature 3 May 53/2 (caption) Miscibility gap between carbonate and silicate melts... Conjugate liquids at 0·7 kbar and 7·6 kbar are joined by tie-lines. 4. A pipeline or transmission line connecting two distribution systems or two parts of a single system. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrical power, electricity > distribution system > [noun] > transmission line line1886 power line1894 transmission line1906 tie-line1949 society > occupation and work > equipment > conveyor > [noun] > conduit, channel, or tube > pipe > for water > types of suspiral1420 quillc1433 boss?1521 susper1532 fountain-pipe1664 pump log1816 wash-out1903 tie-line1949 dead leg1953 1949 Sun (Baltimore) 5 July 10/4 With the completion of a 48-inch tie-line..the city Bureau of Water Supply believes it could supply 4,000,000 gallons daily. 1962 Newnes Conc. Encycl. Electr. Engin. 348/1 If two machines [sc. a.c. generators] are to be coupled together by a tie~line perhaps 50 or 60 miles in length, there may be an appreciable impedance presented to the flow of the synchronizing current. 1974 Sci. Amer. Nov. 40/3 Its objective is to maintain the frequency within an area served by several generating stations and to maintain the sum of all active tie-line power exchanges between the area and its neighbors. This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2019). < n.1877
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