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
随便看	θ55846 θ55847 θ55848 θ55849 θ5585 θ55850 θ55851 θ55852 θ55853 θ55854 θ55855 θ55856 θ55857 θ55858 θ55859 θ5586 θ55860 θ55861 θ55862 θ55863 θ55864 θ55865 θ55866 θ55867 θ55868

> as lemmas