be able / unable to + V 能(够)/不能
be capable / incapable of + -ing 能够/不能
be in a position + to V 能够
can / cannot +V 能/不能
will / will be + V 能/不能
enable … + to V 使…能…
have the ability / capability / capacity / power + to V 用…的能力,能够…
These planes will / can fly at 800 miles per hour .
这些飞机能以 800 英里每小时的速度飞行。
The lathe is capable of carrying out a wide variety of machining operations .
车床能完成各种各样的机加工工序。
In many industrial drives it is necessary to be able to control the speed of a motor .
在许多工业传动(装置)中需要能控制电动机的转速。
We are now in a position to carry out the last of the experiments .
现在我们能进行最后—项实验了。
Hardness of some steels can be increased by heat treating .
某些钢的硬度能通过热处理加以提高。
The gear lever enables the driver to change gear .
变速杆使驾驶员能(变)换排挡。
A current of electricity has the capacity to do work .
电流有做功的能力。
Energy is defined as the capacity for doing work .
能量可定义为做功的能力。
Oxygen has an outstanding ability to combine with other elements .
氧气具有与其他元素相结合的非凡能力。
The ability of a material to unite with oxygen is a chemical property .
物质与氧结合的能力是一种化学性质。
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