英语词汇“invert level”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

b. A structure forming the lowest part or bottom of a sewer, tunnel, drain, etc. Hence: the lowest point on the interior surface of a pipe, drain, channel, etc. Frequently in invert level (see explanation in quot. 2000).Originally a contextual use of sense 1a.

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1835 Questions Connected with Archit. (Inst. Brit. Architects) 10 The arch [sc. of a sewer] is in two half brick rings; the invert on the contrary one whole brick.., or composed of lumps put together in cement.

1873 B. Latham Sanitary Engin. 99 The flat invert formed a better footway for the men..than the sharp curves of the invert of the ordinary oval sewer.

1880 Minutes Proc. Inst. Civil Engineers 61 147 The invert level at the outfall at the sea-wall..is 4.9 feet above Ordnance datum, and 12.8 feet at the point where it joins the old sewer.

1906 Engineering–Contracting 10 Oct. 92/1 In constructing sewers with concrete inverts at Haverhill, Mass, in 1905, use was made of the traveling form or mold shown in the drawings.

1946 E. E. Seelye Data Bk. Civil Engineers II. Gloss. 268/2 Invert, originally, the inverted arch of a masonry-lined sewer. By derivation, the floor, bottom, or lowest point in the internal cross section of a sewer.

1947 L. B. Escritt Sewerage Design & Specif. i. 141 [In U-shaped sewers], the invert is semi-circular, or flat and swept up at a sharp radius to join the sides.

1960 Jrnl. Water Pollution Control Federation 32 218 a (advt.) Chemical wastes have no effect on concrete sewers when inverts are lined with T-Lock Amer-Plate.

2000 D. Butler & J. Davies Urban Drainage vii. 110 The invert of a pipe refers to the lowest point on the inside of the pipe. The invert level is the vertical distance of the invert above some fixed level or datum.

单词	invert level
释义	> as lemmas invert level b. A structure forming the lowest part or bottom of a sewer, tunnel, drain, etc. Hence: the lowest point on the interior surface of a pipe, drain, channel, etc. Frequently in invert level (see explanation in quot. 2000).Originally a contextual use of sense 1a. ΚΠ 1835 Questions Connected with Archit. (Inst. Brit. Architects) 10 The arch [sc. of a sewer] is in two half brick rings; the invert on the contrary one whole brick.., or composed of lumps put together in cement. 1873 B. Latham Sanitary Engin. 99 The flat invert formed a better footway for the men..than the sharp curves of the invert of the ordinary oval sewer. 1880 Minutes Proc. Inst. Civil Engineers 61 147 The invert level at the outfall at the sea-wall..is 4.9 feet above Ordnance datum, and 12.8 feet at the point where it joins the old sewer. 1906 Engineering–Contracting 10 Oct. 92/1 In constructing sewers with concrete inverts at Haverhill, Mass, in 1905, use was made of the traveling form or mold shown in the drawings. 1946 E. E. Seelye Data Bk. Civil Engineers II. Gloss. 268/2 Invert, originally, the inverted arch of a masonry-lined sewer. By derivation, the floor, bottom, or lowest point in the internal cross section of a sewer. 1947 L. B. Escritt Sewerage Design & Specif. i. 141 [In U-shaped sewers], the invert is semi-circular, or flat and swept up at a sharp radius to join the sides. 1960 Jrnl. Water Pollution Control Federation 32 218 a (advt.) Chemical wastes have no effect on concrete sewers when inverts are lined with T-Lock Amer-Plate. 2000 D. Butler & J. Davies Urban Drainage vii. 110 The invert of a pipe refers to the lowest point on the inside of the pipe. The invert level is the vertical distance of the invert above some fixed level or datum. extracted from invertn.¹ < as lemmas
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