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

drawtube n.

Brit.

/ˈdrɔːtjuːb/

/ˈdrɔːtʃuːb/

U.S.

/ˈdrɔˌt(j)ub/

/ˈdrɑˌt(j)ub/

a tube fitted inside another tube through which it can slide; spec. that which holds the eyepiece in a monocular microscope or telescope.

ΚΠ

1728 E. Chambers Cycl. at Eye Artificial Eye... In the Inside, have a short draw-Tube G, with a Lens Convex on both Sides, to do the Office of the Crystalline therein.

1817 A. Rees Cycl. (1819) XXXVI. at Tube The Construction of a Draw-tube for a Telescope.

1892 S. H. Gage Microscope & Histol. 18 To push in the draw-tube, grasp the large milled ring of the ocular with one hand, and the milled head of the coarse adjustment with the other.

1995 Sky & Telescope May 43 (advt.) Digital ReadOut (DRO) from Jim's Mobile Inc. is an electronic device that displays the position of a telescope's drawtube.

单词	drawtube
释义	> as lemmas drawtube drawtube n. Brit. /ˈdrɔːtjuːb/ , /ˈdrɔːtʃuːb/ , U.S. /ˈdrɔˌt(j)ub/ , /ˈdrɑˌt(j)ub/ a tube fitted inside another tube through which it can slide; spec. that which holds the eyepiece in a monocular microscope or telescope. ΚΠ 1728 E. Chambers Cycl. at Eye Artificial Eye... In the Inside, have a short draw-Tube G, with a Lens Convex on both Sides, to do the Office of the Crystalline therein. 1817 A. Rees Cycl. (1819) XXXVI. at Tube The Construction of a Draw-tube for a Telescope. 1892 S. H. Gage Microscope & Histol. 18 To push in the draw-tube, grasp the large milled ring of the ocular with one hand, and the milled head of the coarse adjustment with the other. 1995 Sky & Telescope May 43 (advt.) Digital ReadOut (DRO) from Jim's Mobile Inc. is an electronic device that displays the position of a telescope's drawtube. extracted from draw-comb. form < as lemmas
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> as lemmas