多年来,用的较多的固定剂是动物制品龙涎香 、 香猫香 、 麝香、以及河狸香.For many years the leading fixatives were the animal products ambergris, civet, musk and castoreum.河狸寻找造窝的场所时是很挑剔的.A beaver looking for a building site is very choosy.其他一些因素也有助于河狸的活跃...
The cocoa industry dwindled because it became increasingly difficult to cover costs.由于越来越难以收回成本，可可产业日渐衰落。The factory's workforce has dwindled from over 4,000 to a few hundred...工厂雇员总数已经从 4,000 多人减少到几百人。Longfellow, L...
Results The attack rate of depression in the patients with ACAS was ( 60.7 % ) .结果本组 ACAS 患者抑郁发生率为 60.7%.Most of the ACAs in each eye were dissected and preserved.ACAs在直肌内的数目存在变异.The dynamic change of intracellular Ca 2 ...