请输入您要查询的英文单词:

 

单词 semi-automatic
释义

semi-automaticadj.n.

Etymology: semi- prefix 1a(a), 2c(m)Previous versions of the OED give the stress as: semi-autoˈmatic.
A. adj.
1. Partially automatic; spec. designating a system, device, or machine whose function is not completely automatic.
ΘΚΠ
the world > action or operation > [adjective] > operating independently or spontaneously
unprovoked1585
automatical1586
automatic1599
self-acting1605
self-active1642
self-acted1651
spontaneous1664
authentic1834
semi-automatic1890
shoot-from-the-hip1967
1890 W. James Princ. Psychol. I. 5 The performances of animal instinct seem semi-automatic, and the reflex acts of self-preservation certainly are so.
1908 J. G. Horner Encycl. Pract. Engin. Semi-Automatic.—This is practically identical in meaning with the term self-acting. It signifies a machine, some of the movements only of which are automatic, and which therefore requires constant attendance.
1937 Chem. Abstr. 31 2763 Chrome-plated molds for semiautomatic machines of the Kutcher type.
1970 Computers & Humanities 4 351 Scope: To make more specific and semiautomatic the testing technique of scientific works, intensive critique of books and other lengthy works.
2. Specialized uses.
a. Of a type of lathe: that can perform a number of distinct operations on a given work-piece without intervention from an operator.
ΘΚΠ
society > occupation and work > equipment > machine > types of machine generally > [adjective] > automatic > semi-automatic
self-starting1850
semi-automatic1903
smart1972
1903 T. R. Shaw Lathes, Screw Machines, Boring & Turning Mills xii. 505 A semi-automatic lathe, having four spindles, is illustrated.
1950 S. J. Gibson in A. W. Judge Centre, Capstan & Automatic Lathes II. iv. 181 The ‘Maximatic’..is semi-automatic only in the sense that the loading is done by hand.
b. Military. Of a firearm: that loads itself or performs part of the loading operation automatically, but does not fire continuously.
ΘΚΠ
society > armed hostility > military equipment > weapon > device for discharging missiles > firearm > [adjective] > repeating or automatic
repeating1736
six-shooting1858
automatic1877
auto1906
semi-automatic1911
1911 H. A. Bethell Mod. Artillery in Field i. 15 Semi-Automatic Actions.—In these the breech opens automatically during the run up, and ejects the cartridge case.
1945 C. E. Balleisen Princ. Firearms i. 2 Most ‘automatic’ pistols are only semiautomatic.
1976 J. Wainwright Walther P. 38 7 The Luger..was a semi-automatic pistol... Its trigger had to be squeezed for each shot.
c. Applied to a telephone system of which the operation is automatic except that dialing of the required number is done by an operator (see quots.).
ΚΠ
1912 J. Poole Pract. Telephone Handbk. (ed. 5) xxxii. 536 Semi-automatic systems are in use on the Continent, and also in some towns in America, but not to any great extent.
1927 C. W. Wilman Man. Automatic Telephony xxii. 219 It is claimed for semi-automatic systems that many of the advantages of automatic systems, such as the rapidity of connection and instantaneous clearing, are retained, while the subscribers are relieved of the duty of dialling.
1976 T. H. Flowers Introd. Exchange Syst. iii. 65 It was asserted that if a subscriber paid for service as he did, it was not right and was even dishonest to make him do his own operating, so semi-automatic exchanges with operators to do the dialling was the right thing.
B. n.
1. A semi-automatic lathe.
ΘΚΠ
society > occupation and work > equipment > machine tool > lathe > [noun] > other lathes
pole-lathe1815
throw-lathe1875
turret-lathe1875
transfer-lathe1877
trimming-machine1877
portrait lathea1884
semi-automatic1902
chamfering lathe1921
1902 Lockwood's Dict. Mech. Engin. (ed. 3) 444 Semi-automatics. These constitute a large class of machines which occupy a middle position between the..‘full’ automatic machines and those which involve the constant attendance of an operator.
1963 N. Weinstein tr. Boguslavsky Automatic & Semi-automatic Lathes i. 32 If internal surfaces are to be machined in addition to external surfaces, semi-automatics having a central end-working toolslide, or a turret are employed.
2. A semi-automatic firearm.
ΘΚΠ
society > armed hostility > military equipment > weapon > device for discharging missiles > firearm > [noun] > type of firearm > repeating or automatic
repeater1838
self-loader1852
automatic1896
autoloader1906
autoloading1906
auto1916
burp gun1945
semi-automatic1964
1964 H. L. Peterson Encycl. Firearms 31/2 In 1916, the Germans introduced a limited number of Mauser semi-automatic rifles. The French followed in 1917, with the Saint-Étienne gas-operated semi-automatic.
1978 S. Brill Teamsters vi. 239 The gunman reached down, held the High Standard semiautomatic against Mrs. Rand's chin and fired three more shots.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2019).
<
adj.n.1890
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/1/4 3:37:26