Mechanical expansion
机───machine;扩───expand
This machine won't let you down.───你尽管放心,这台机器不会出毛病。
The machine is automatically controlled.───这机器是自动控制的.
He is explaining how a machine operates.───他正在解释机器是如何运转的.
The machine will start running as soon as the electric current is turned on.───电流一接通,机器就立刻开始运转.
We reckon your pay with our adding machine.───我们用加算器来计算你的薪金.
This machine serves a double purpose.───这部机器有双重用途.
The machine cycles automatically.───这台机器自动循环运转.
They advised the peasants on how to use the machine.───他们指导农民如何使用这台机器.