gross leak test

例句：

1. 1. The engineer conducted a gross leak test on the new machine before it was put into use.
   工程师在机器投入使用前对其进行了粗漏试验。
2. 2. To ensure safety, the company insists on conducting a gross leak test on all new products.
   为确保安全，公司坚持对所有新产品进行粗漏试验。
3. 3. During the testing phase, the team performed several gross leak tests to identify potential issues.
   在测试阶段，团队进行了几次粗漏试验，以识别潜在问题。