多氯化联苯在土壤中, 水中或空气中都无法分解, 只会继续累积.PCBs don't break down in soils, water or air, but carry on accumulating.建立了HPLC测定联苯菊酯含量的方法.An HPLC method for the determination of bifenthrin emulsifiable concentrates was developed.介绍...
She was horrified at the dehumanisation involved in much of the imagery.这些意象在很大程度上表现出的人性泯灭让她深感惊骇。This is an ambitious and intriguing movie, full of striking imagery.这是一部气势恢宏、引人入胜的电影，充满了动人心魄的瑰丽意象。the poet's luxuriant...