The betaine will collapse to the alkene only when these two functions are eclipsed.只有当这两个基团移至重迭位置时碘盐才能裂解为烯烃.The gramophone had been eclipsed by new technology such as the compact disc.激光唱片等新技术使留声机黯然失色。Our happiness was s...
He had a large parcel under his left arm.他左胳膊下夹着一个大包裹。The colon, or large intestine, distends and fills with gas.结肠，或大肠，因充满气体而膨胀。Go and get me a large brandy...去给我拿一大杯白兰地来。Frank took a large ring of keys from his pocket....
比如在科罗拉多红锈色的水中繁衍的弓背鲑.The humpback chub , for example, thrived in the rust - red waters of theColorado.圆锥花序, 密被锈色绒毛, 花冠淡黄色, 有芳香.Panicles, dense hair was rust - colored, corolla light yellow, with aroma....
槭糖浆是用糖槭树中提取的树液制成的。Maple syrup is made from sap extracted from the sugar maple tree.糖槭树(枫树)也生长在安大略.Sugar maple trees grow in Ontario.我们花园里有几棵槭树.We have several maples in our garden....
Sodium metaborate is a by - product from deoxidation of sodium borohydride.摘要偏硼酸钠是硼氢化钠的还原 副产物.It is resistant to borohydride reduction in alcoholic solvents.在醇溶剂中,它不能被硼氢化物还原.The hydrogenation of terpineol to dihydroterpi...
Mr Acton has a charge account at the garage on the corner.阿克顿先生在街角的那家修车厂有信用帐户.We advertised our garage sale in the neighborhood paper.我们在当地的报纸上刊登了我们的现场旧货出售广告.The car knocked against the garage door and damaged it.汽车撞在车房门...
Some insurers have wised up to the fact that their clients were getting very cheap insurance.一些保险公司已经意识到其客户所得到的保险金非常少。Most of China's major banks, insurers, stock brokerages and other financial institutions are gove...