frass的翻译

When hexane extracts of the frass FA and FC were further partitioned into polar and neutral lipid fractions, two polar fractions and the neutral fraction from frass FC significantly reduced oviposition.

将两种粪便的正己烷提取液进一步分离为极性和中性脂类，两种粪便极性脂类和取食棉叶的幼虫粪便的中性脂类均显著的忌避怀卵雌蛾。

It was found that a water suspension or a hexane extract of the frass FA or FC, in contrast to the corresponding foods, significantly deterred oviposition of conspecifics.

结果表明两种粪便的水悬浮液和正己烷提取液对怀卵雌虫的产卵有显著的忌避作用，而人工饲料和棉叶的水悬浮液和正己烷提取液却引诱怀卵雌虫产卵。

Field tests showed that females gnawed significantly fewer oviposition scars on Pinus massoniana trees treated with hexane extracts of larval frass than on the control trees.

林间驱避试验结果说明，幼虫虫粪的己烷提取物处理过的树干上的刻槽数明显少于对照树干上的刻槽数，二者具有极显著差异；