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

disc micrometer n. (a) Astronomy a micrometer (micrometer n. 1) in which the image in a telescope or microscope is made to fall on a circular disc, placed at such a position as to match the image in diameter, the position and diameter of the disc then allowing the angular size of the image to be calculated; now rare and historical; (b) Engineering a micrometer (micrometer n. 2) in which the two jaws end in a circular disc to provide a larger grasping area.

ΚΠ

1783 W. Herschel in Philos. Trans. (Royal Soc.) 73 9 The measures of the Planet by the lucid disk micrometer appearing to me very small, I resolved to ascertain the power of my telescope again most scrupulously.]

1873 Amer. Jrnl. Sci. 105 169 The use of the disc micrometer described by me in another place, I do not consider practicable with storms in our latitudes.

1972 Cellular Immunity 5 250 The paw diameter reaction was measured with a disk micrometer.

1978 T. J. Kim & M. F. Wilson in L. T. McCarthy et al. Chem. Dispersants for Control of Oil Spills 205 The ocular of the microscope was fitted with a disk micrometer in its focal plane to assist in drop size measurements.

1986 W. E. Boyes Low-Cost Jigs, Fixtures & Gages xii. 224 Disc micrometers..are used for checking the thickness of lands or sections bounded by narrow grooves.

2012 P. J. Hoffman et al. Precision Machining Technol. iv. 119 (caption) (A) A disc micrometer. (B) A blade micrometer. (C) A conical micrometer.

单词	disc micrometer
释义	> as lemmas disc micrometer disc micrometer n. (a) Astronomy a micrometer (micrometer n. 1) in which the image in a telescope or microscope is made to fall on a circular disc, placed at such a position as to match the image in diameter, the position and diameter of the disc then allowing the angular size of the image to be calculated; now rare and historical; (b) Engineering a micrometer (micrometer n. 2) in which the two jaws end in a circular disc to provide a larger grasping area. ΚΠ 1783 W. Herschel in Philos. Trans. (Royal Soc.) 73 9 The measures of the Planet by the lucid disk micrometer appearing to me very small, I resolved to ascertain the power of my telescope again most scrupulously.] 1873 Amer. Jrnl. Sci. 105 169 The use of the disc micrometer described by me in another place, I do not consider practicable with storms in our latitudes. 1972 Cellular Immunity 5 250 The paw diameter reaction was measured with a disk micrometer. 1978 T. J. Kim & M. F. Wilson in L. T. McCarthy et al. Chem. Dispersants for Control of Oil Spills 205 The ocular of the microscope was fitted with a disk micrometer in its focal plane to assist in drop size measurements. 1986 W. E. Boyes Low-Cost Jigs, Fixtures & Gages xii. 224 Disc micrometers..are used for checking the thickness of lands or sections bounded by narrow grooves. 2012 P. J. Hoffman et al. Precision Machining Technol. iv. 119 (caption) (A) A disc micrometer. (B) A blade micrometer. (C) A conical micrometer. extracted from discdiskn. < as lemmas
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> as lemmas