Energy and mass are equal and interchangeable.能量与质量相等而又是可以互相转换的。Interchangeable spray - can nozzles fitted to can to var y width of spray.可互换的水沫 - 罐子喷嘴适合将改变水沫的宽度装于漆灌.His greatest innovation was the use of interchangeable...
The lungs are in fact constructed of thousands of tiny tubes.肺实际上由上千条细微的气管构成。The goldfish swam round and round in their tiny bowls.金鱼在小小的鱼缸里一圈圈地游来游去。The Martian atmosphere contains only tiny amounts of water.火星的大气层中只含有极少...
Exercising the body does a great deal to improve one's health.锻炼身体对增进健康大有益处。There is a great deal to learn from Hal's expert approach.从哈尔熟练的方法中可以学到很多。She had placed a great deal of faith in Mr Penleigh.她对彭利先生极其...
最具有经济价值的铁矿包括磁铁矿和赤铁矿.Iron ores of greatest economic interest contain magnetite and hematite.A-Fe2O3(赤铁矿 ) 是中子衍射最先研究的化合物之一.A - Fe 2 O 3 ( haematite ) was one of the first compounds to be studied by neutron diffraction.发现一种...
目的观察苯妥英钠对大鼠实验性胃溃疡的保护作用.Objective To observe the protective effect of PHT on experimental gastric ulcer.目的用高精度散射光度滴定法测定苯妥英钠.Aim To determine phenytoin sodium by a highly accurate nephelometric titration.结论 苯妥英纳对烧伤患者免疫抑制因子...