Twenty million years ago, Idaho was populated by dense primordial forest.2,000万年前，爱达荷州到处都是茂密的原始森林。Twenty million years ago, Idaho was not the arid place it is now. Rather, it was warm and damp, populated by dense primord...
Northeastern University is operated directly under the Ministry of Education.辽宁大学是一所教育部直属高校.Jack Levin of Northeastern University.]北大学的杰克列文博士这样说.And this camp is located in northeastern Iraq.这个营地位于伊拉克北部....
车上装的食品是用铬合金做的.The trimmings on the car are made of chromium.铬补充剂被成功运用于治疗糖尿病（见第4章）。Chromium supplements were used successfully in the treatment of diabetes (see Chapter 4).一些厂已采用两段铬酸盐还原法.Two - stage chromate reduction has...
Cairo has only thirteen square centimetres of green space for each inhabitant.开罗居民的人均绿地面积仅13平方厘米。A thirteen year old girl is being treated after breathing in smoke.一名13岁的小姑娘因吸入浓烟正在接受治疗。Thirteen per cent of Christie'...
Substances differentiated tissues secrete are called chalone.已经分化的组织分泌物称为抑素.Objective : To purify rabbit hepatic chalone HC , and investigate its biological activity, purity and molecular weight.目的: 制备家兔肝抑素纯品, 检测其生物活性 、 ...