Randolph's work was exclusively concerned with the effects of pollution on health.伦道夫的著作专门论述污染对健康的影响。The snowcoach concept in Yellowstone provides low-impact, low-pollution access.在黄石公园里使用雪车这一想法，为人们提供了一种对环境低影响、低污染的游...
...the need to control environmental pollution...控制环境污染的需要Pollution is the price we pay for an overpopulated, over industrialized planet.污染就是我们为这个人口过密, 过度工业化的星球所付出的代价.Environmentalists say a critical factor in the city&#...
He lengthened his stride to keep up with her.他迈大步追上她。The two saleswomen were busily trying to keep up with the demand.那两名女售货员正忙着接待顾客。She was skipping to keep up with him.她连蹦带跳地走着，好跟上他的步伐。...
She still listens to the tapes I made her.她还在听我为她录制的带子。He listens and waits for the narrator to explain more.他听著,等待讲的人进一步解释.She listens to classical music for relaxation.她听古典音乐放松....
这种做法弊病不少.This method has quite a few drawbacks.它目前国内方面的经济弊病主要源自支出过度。Its present economic ills on the home front are largely the result of overspending.谁能医治经济上的这些弊病 呢 ?Who can cure the economic ills?...
土壤的采样使用芯形采样器.Soil is sampled with a core sampler.为了保持样品沉积物的层次结构, 就要用空心铁管采样器.To take samples that retain the larger structure of the sediment, a core sampler is used.我国降水自动采样器的现状 、 存在的问题和今后的发展趋势.The status, constraints an...
Phenyl ( or polyphenyl ) substituted epoxides serve as excellent precursors to phenyl ( or diphenyl ) carbenes.某些苯代 ( 或多苯 ) 环氧乙烷是制取带苯环 ( 或二苯 ) 碳烯的极好原料.Note the presence of megakaryocytes, erythroid islands, and granulocy...