crankcase oil foaming test

例句：

1. 1. The engine manufacturerconducted a crankcase oil foamingtest to ensure the proper function of theengine.
   发动机制造商进行了曲轴箱油泡沫试验，以确保发动机的正确运行。
2. 2. During thetesting process, the technician noticed that theoil was foaming at the crankcase.
   在测试过程中，技术人员注意到曲轴箱处的机油正在起泡沫。
3. 3. The resultsof the crankcase oil foamingtest were critical for diagnosingand fixing the engine's issues.
   曲轴箱油泡沫试验的结果对于诊断和修复发动机的问题至关重要。