I don't react anymore when opponents try to niggle me.对手找茬惹我时，我不会再理他们。a niggle of doubt一丝挥之不去的疑虑So why is there a little niggle at the back of my mind?那为什么我潜意识里会有一丝不安呢?...
Jo Robinson began by humanizing the waiting time at the health centre with tea-making and toys for children.乔·鲁宾逊最早是为在医疗中心候诊的人们提供茶水和儿童玩具，使候诊过程变得人性化。The Chinese use different and process tea , making it into black tea and...
要现代工艺中,一般是用电镀法将锡镀在钢片上.In modern operations tin is generally deposited on the steel plate by electrolytic action.制备牙科车针主要有电镀法和钎焊法.There are two methods of producing diamond bures that are electroplating and brazing....