当不同的金属是在相同的电解物的电连络中的时候,流电的腐蚀发生.Galvanic corrosion occurs when dissimilar metals are in electrical contact in the same electrolyte.如何得知发电机所产生的电流是文流电还是直流电?This depends on the design of the generator commutator is required ...
It's denseness prolificacy fertility make a sharp contrast with the sparse and poor native soil.它稠密、多产、肥沃,与当地稀疏、贫瘠的土壤形成鲜明的对比....a man who's promised to make radical changes to benefit the poor has swept the ele...
守财奴舍不得花他的钱.The miser doesn't like to part with his money.守财奴爱财如命,宁可饿肚皮,没衣穿.Misers put their back and their belly into their pockets.老子守财奴,儿子败家子.A miserly father makes a prodigal son....
Water Chestnut germinates and grows again.冬天枯萎了的马蹄都再次萌芽生长.Once the seed germinates very carefully remove it from the sand, vermiculite, or burlap bags.种子一旦发芽后,小心从沙地 、 蛭石或者粗布麻袋把它拿走....