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...
The union is particularly concerned at the sourcing of products abroad.该联盟尤其关注海外的产品货源。Together they travel the world, sourcing clothes for the small, privately owned company.他们一道走遍世界各地，为那家私营小公司寻觅服装货源。They are sourcing fr...
He wore his cleanest slacks, a clean shirt and a navy blazer...他穿着他最干净的便裤，洁净的衬衫和藏青色上装。Now he took off the blazer and slung it over his shoulder.于是他脱下运动衫搭在肩上....a navy-blue blazer.海军蓝的便上装He wore his cleanest slacks, a cle...
His arm throbbed dully.他的胳膊隐约在抽动。The knife’s blade gleamed dully in the dark.刀刃在黑暗中幽幽地闪着光。“When will you finish the job?” he asked dully.“你何时才能结束这工作?”他没精打采地问道。The gas street lamps glowed dully, blobs of yellow in the fog...