John Doe died in his bath, asphyxiated by the fumes from a gas water-heater.一名男子死于浴室中，死因是吸入燃气热水器中排出的气体导致窒息。Some appliances, for example a water heater, are connected to the full 240 V.有些用电设备(如煮水器)联接在240伏上.The company cam...
The adsorption behaviour of cephalexin on hanging mercury electrode surface is reported.报道了头孢氨苄在悬汞电极表面的吸附行为.The advances in the process technology for the enzymatic synthesis of cephalexin are reviewed.综述了酶法合成头孢氨苄的工艺方法研究...