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...
a gaggle of women一群多嘴的女人A gaggle of journalists sit in a hotel foyer waiting impatiently.一群乱哄哄的记者坐在酒店大堂里焦急地等待着。In another hospital, I found a gaggle of rural patients crouching on the forecourt.在另一家医院, 我一群吵闹的农村病人蹲在医院的大厅....
A porcupine is covered with prickles.箭猪身上长满了刺.A little porcupine made a house by the side of the river.小刺猬在小河边上造了一幢小房子.One of the sharp hollow spines of a porcupine or hedgehog.豪猪或刺猬身上硬而中空的保护刺....
They cannot determine their optimum price and output with neat exactitude.他们不能精确无误地知道最优价格和产量.Mother's voice held a challenge of stubborn exactitude.母亲的声调里有固执而针锋相对的挑战意味.Both exactitude and accuracy can meet the deman...
对某公司产品有过度需求.There is excess demand for a firm's products.所以你不再相信某公司销毁了证据?So you don't believe anymore that the company covered it up?某公司销售出电脑15台,每台成本为800美元,共收入15000美元.A company sold 15 computers costing US $ 80...
把蛋糕翻到合适的方向对准金属丝架上。Turn the cake the right way up on to a wire rack.甚至可能有一些金属丝或者尼龙线勒到肉里。There may even be some wire or nylon biting into the flesh.一段弯曲的金属丝a piece of bent wire...
Let them climb, take trenches, physique bridges and ingest parachutes.让它们攀爬, 挖沟, 架桥和使用降落伞.The macrophages collect to ingest the lipid material.巨噬细胞聚集起来吞噬脂质.You will ingest only the lightest of substances.你只将摄取最轻的物质....