It is not that the action of the scales in the one case, and the balance in th
e other, differ in the principles of their construction or manner of working;
but the beam of one is set on an infinitely finer axis than the other, and of
course turns by the addition of a much smaller weight.
It's...到but分號前的這句不太會翻
我用google翻譯應該可以瞭解三四成左右
大概是說天平跟秤子應該是刻度精準的差異
可是原句實在卡很久
希望有人可以幫助 感恩