气体的压强是由这些粒子对容器壁的撞击造成的.The pressure is caused by the bombardment of the container walls by these particles.依照理论, 物质只能在粒子 - 反粒子对中产生.According to the theory, matter can only be created in particle - antiparticle pairs.湮灭能产生...
Objective To study the purification process of total flavonoids in Lignum Dalbergiae odoriferae with macroporous resin.目的考察大孔吸附树脂分离纯化降香总黄酮的工艺条件及参数.OBJECTIVE : To enrich and purify Achyranthes Bidentata Saponins with macr...
It is therefore possible to formulate the chain transfer with ethylbenzene as follows.所以可以用下式来表示乙苯链转移.I was impressed by the way he could formulate his ideas.他陈述观点的方式让我印象深刻。He took care to formulate his reply very clearl...