这种蜡质属于乙醇有机溶剂的萃取物.The waxes are classed as alcohol or organic solvent extracted materials.在许多细胞中,含量最高的磷脂是磷脂酰乙醇胺或脑磷脂.The most abundant phospholipid in many cells is phosphatidyl ethanolamine or cephalin.这些反应能把四分之三的乙醇酸的碳保存在...
This defender’s ability to score vital goals has often proved a trump card.这名防守队员在关键时刻进球得分的能力常常成了整个队的制胜法宝。an indefatigable defender of human rights不屈不挠的人权捍卫者He shouldered off a defender and shot at goal.他用肩膀挡开防守队员,然后射门.a...
历史和轶闻的分界向来是模糊而混乱的。The boundaries between history and storytelling are always being blurred and muddled.虽然他爱发脾气，而且有时还很讨厌，但向来都只是一阵儿。Though he had a temper and could be nasty, it never lasted.在花钱的问题上，他们向来很谨慎。They don't...
芳基取代聚炔及其衍生物呈现出光电磁等许多新颖的性能.Aryl substituted polyacetylenes and their derivatives exhibit a lot of novel optical , electric, magnetic properties.目的: 建立中药北沙参中聚炔法卡林二醇的薄层扫描测定方法.Objective : To establish TLC scanning method for...
中心力是由球对称的势能函数而来的力.A central force is one derived from a potential - energy function that is spherically symmetric.有心力是一种径向力,它的大小只取于离原点的距离.A central force is a radial force which depends only on the distance from the orig...
当他们靠近时，大象又吼又跺脚。The elephants trumpeted and stamped their feet at their approach.那女孩一发脾气就跺脚.That child stamps her foot when she is in a passion.我们跺脚取暖.We stamped the ground to keep our feet warm....
尽管他身形庞大，移动起来还是很灵巧。Despite his bulk he moved lightly on his feet.他灵巧的动手能力和杰出的空间识别能力都浪费在日常事务上了。His manual dexterity and fine spatial skills were wasted on routine tasks.观看她的手指灵巧而又准确无误地移动是一件美事。It was wonderful to watch her ...
月亮和潮水的涨退有关系.There is a relationship between the moon and the tides.死尸被潮水的流向冲上岸来了.The dead body was washed ashore by the drift of tide.开始建造跨越潮水的大桥.And built a bridge to span the tide....