Wood flooring not only cleans easily, but it's environmentally friendly into the bargain.木地板不光容易打扫，而且还环保。More and more companies have gone "green" and started producing so-called environmentally-friendly products.越来...
Magnesium hydroxide particles were synthesized via decomposition of hydrosulfide compound followed with hydrothermal treatment.以工业氯化镁和硫氢化钡为原料,采用复分解法合成高纯氢氧化镁.Thioglycolic acid ( TGA ) was synthesized from thioglycolic aci...
雪橇可以按天租用。Skis are available for hire on a daily basis.承租人应负责维修租用的房产。Tenants are responsible for the upkeep of rented property.这些船按小时租用.These boats are let out by the hour....
加利福尼亚川流不息的车流使空气中充斥着污染物。A steady stream of California traffic clogs the air with pollutants.家禽身上发现的污染物，在禽蛋里也会有。Contaminants found in poultry will also be found in their eggs.多数城市都会产生各种物质混杂的污染物。Most cities generate a compl...