Water is virtually incompressible and a simplepump can be used to give adequate pressure without difficulty.
事实上水是不可压缩的,利用简单的水泵便可方便地提供适宜的压力。
2
This is a simple test to get me going, to "prime the pump," so to speak.
可以说,这是一个简单的测试,让我说明测试驱动的编程。
3
The University of Maine arches, on the other hand, can be fabricated on site — the fabric inflated, bent around a simple form and infused with resin using a vacuum pump.