本文研究了N, N二 甲庚基乙酰胺 ( N_ ( s03 ) )从氯化物体系中萃取钯的机理.The extraction mechanism of palladium in chloride system by di ( 1 - methyl heptyl ) acetamide ( N _ ( 503 )) has been studied....
这种鲸油多.The whale is rich in blubber.人们捕鲸是为了获得宝贵的鲸油 、 鲸肉和鲸骨.Men went whaling to get the valuable oil, meat, and bones of whale.在《白鲸记》一书中深刻地描写了欧洲人依赖鲸油作灯油照明的重要.In the story of Moby - Dick, European depended on whale oil for ...
But do not get me wrong. My friend was not a deadbeat.但不要误会我的意思, 我的朋友不是赖帐的人.That deadbeat never worked a day in his life.那位懒虫终日游手好闲,一辈子也没工作一天.Everyone agreed that Mary's new boyfriend was nothing but a deadbeat.大家都认...
是低温使水变成冰的 吗 ?Is it the low temperature that turns the water to ice?这是雪和冰的结晶体.It is snow and ice crystals.覆盖着冰的路面对驾驶汽车的人是个危险的隐患.Icy roads are a hidden danger to motorists....