The progresses in five - membered heterocyclic metallocene analogic complexes and their application in olefin polymerization are reviewed.综述了五元杂环类茂金属配合物的研究进展及其在烯烃聚合中的应用....
The rope whipped clear of the water, throwing up a spray of droplets.绳子猛地甩过水面，带起一片水珠。Droplets of sweat were welling up on his forehead.他额头上冒出了滴滴汗珠。In constrast, exhaled smoke contains relatively large water droplets and ...
to hoe the flower beds用锄头给花坛除草松土I have to feed the chickens and hoe the potatoes.我得喂鸡，还得为马铃薯锄草。She bought herself a hoe and a sickle.她给自己买了一把锄头和一把镰刀.She killed with a hoe the biggest rattlesnake ever seen in this country...
A guard zapped him with the stun gun.一名警卫用眩晕枪击中了他。The snake uses its venom to stun or paralyze its victims.蛇用其毒液使受害者失去知觉或瘫痪.This speech seemed to stun the king.这话似乎使国王大吃一惊....