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...
She was given exemption from the final examination.她已获准期末免试。They enjoyed exemption from customs duties on goods to be used by themselves.他们的自用物品获得免除关税。the exemption which applies to home/buyers适用于购房者的豁免Two recent, unanim...