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。