Astaxanthin molecular structure which contains 13 conjugated double bonds, is one kind of extremely unsteady carotenoid.虾青素分子结构中含有13个共轭双键, 是一种极不稳定的类胡萝卜素.This article reviews the research progress of astaxanthin in the la...
Trial producing a austempering ductile iron of oblique wedge to replace steel.试制一种新型的奥氏体──贝氏体球铁斜楔,代替原来的铸钢件.The techniques of austempering and the factors of affect properties of ADI were introduced.本文概述了ADI的 等温淬火工艺和影响ADI...
The blood circulates through the body.血液在全身循环.The story circulates among the people.这个故事在人民中流传.During a depression money circulates slowly.在商业萧条时期,货币流通滞缓....
Opium is classed under the head of narcotic.鸦片是归入麻醉剂一类的东西.Since the birds interbreed they cannot be classed as different species...由于这些鸟进行杂交繁殖，不能把它们归为不同的物种。They classed this insect under the Coleoptera.他们把这种虫列入甲虫类.Other ...