test for over-all air-tightness of compressed air equipments

例句：

1. 1. Before we can test the new software, we need to make sure it's compatible with our hardware.
   在测试新软件之前，我们需要确保它与我们的硬件兼容。
2. 2. The engineer tested the machine before installing it in the factory.
   工程师在将机器安装到工厂前进行了测试。
3. 3. The company conducted a thorough test of its new product before releasing it to the market.
   公司在推向市场之前对新产品进行了彻底的测试。