| 单词 | thin section |
| 释义 | > as lemmasthin section thin section n. a thin, flat piece of rock or tissue prepared with a thickness of about 0·03 mm. for examination with an optical microscope; also, a piece of tissue of the order of 30 nm. thick prepared for electron microscopy. ΘΚΠ the world > life > biology > laboratory analysis > processes > [noun] > dissection > examination by microscope > section prepared for examination thin section1858 section1870 serial section1878 1858 Q. Jrnl. Geol. Soc. 14 469 For some purposes, however, thin sections are quite indispensable. 1872 F. Delafield Handbk. Post-mortem Exam. i. 21 The proportion of alcohol is to be afterward increased until the mucous membrane is hard enough to be cut into thin sections. 1916 Jordan & Ferguson Text-bk. Histol. xx. 734 Thick sections may be obtained from the firmer tissues by free~hand sectioning with a razor, but for the satisfactory preparation of thin sections a microtome is a necessity. 1956 Nature 14 Jan. 98/1 Although electron microscope contrast may be increased by the use of objective apertures, accurate focusing in thin-section work is still difficult. 1970 Nature 17 Oct. 251/2 Petrological analysis by thin section has enabled the locality of origin of axes made from hard rock to be identified. < as lemmas |
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