A dentist performs in-office treatments by coating the teeth with a bleaching agent, then using periodic flashes of light to activate the solution.
所谓诊所治疗就是牙医用漂白剂给牙齿涂层，并周期性地用闪光灯来启动解决方案。
They also pointed out that coating the insects was easy to do-they just dipped the bugs in a solution or let a drop of it fall onto them and then wiped off the extra.
他们同时也指出，对昆虫的涂覆很容易实现——仅仅是把昆虫浸入在溶液中或是在昆虫身上滴一滴溶液然后擦去多余的部分即可。
In some cases, if the salt solution of the metal ion content for simple ion, the coating, therefore, coarse grains to adopt complexation ion of plating solution.
有些情况下﹐若镀液中主盐的金属离子为简单离子时﹐则镀层晶粒粗大﹐因此﹐要采用络合离子的镀液。
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