Dalton Chetti ,一个铅笔艺术家的名字,有音标发音标,没的把他中文名给我···!

谁能给的好好解释下Dalton's Law(格雷姆定律)
RT.
看回答加分.

玻尿酸的平均分子量介於10万到1000万Dalton之间是什麼意思?这样写代表著什麼?
我在网路上看到这句话,我不知道它是要表达什麼意思?是要告知玻尿酸的大小?还是要告知玻尿酸的重量?如果是要表达大小,其大小是多少?若是要告知重量,其有多重?还是要表达其他意思?

英语翻译
Dalton wondered why the heavier and lighter gases in the atmosphere did not separate as oil and water do.He finally concluded that the constituent gases must exist in the form of tiny particles or atoms and that these must be completely mixed together in the atmosphere.This threw a new light on the laws of definite proportions.It was only necessary to suppose that the atoms could combine into small groups of uniform structure and so form more complex substances,thus the mystery of this law was solved.Dalton suggested,for example,that carbon monoxide is formed by the one with one pairing of the atoms carbon and oxygen,while carbon dioxide results from a single atom of carbon uniting with two atoms of oxygen.Assuming this to be true,then the definite proportions of Prout's law (for all chemical compounds the different constituents that always enter in unvarying proportions )would naturally reveal the relative weights of the many different kinds of atoms.