More reactive are the heavier isotopes of hydrogen, deuterium and tritium.更为活跃的是氢的较重同位素, 氘和氚.The substituent is deuterium.取代基是重氢.the nucleus of a deuterium atom氘原子的原子核Deuterium is widely used in the study of reaction mec...
Cookware water heating, water will be cut open Add to ribs.炒锅烧水, 水开后将切好的排骨放入....several lines of popular cookware and utensils.几组受欢迎的烹饪用具和器皿Matching facilities: Hardbound, the furniture is complete, band, natural gas, co...