Where water itself is plentiful,yet waterpower,i.e. a fall of water applicable by its mechanical force to the service of industry,may be exceedingly limited,compared with the use which would be made of it if it were more abundant.

• 在水本身丰富的地方，水力资源，即可用其机械力服务于产业的有落差的水流，同水利资源如果较为丰富，人们可能对其加以利用的程度相比，也许是极其有限的。