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...
Young people and nursing mothers are exempted from charges.未成年人和哺乳期女性免予起诉。His bad eyesight exempted him from military service.他因视力不好而免服兵役.Her illness exempted her from the examination.她因病而免试....
They are reliant on a very limited number of exportable products.他们依赖数量非常有限的外销产品。Either then produces net exportable electricity for sale to offset plant - operating costs.然后可以产生净输出电能用来销售,从而弥补装置的运营成本.We enclose ( are enc...