engine crankshaft loading

例句：

1. 1. The engineers are required to perform regular engine load tests to ensure the smooth operation of the machinery.
   工程师们需要定期进行发动机负载测试，以确保机械的顺畅运行。
2. 2. During the engine load test, the technician monitored the performance of the engine and recorded any issues that arose.
   在发动机负载测试期间，技术人员监测了发动机的性能并记录下任何出现的问题。
3. 3.The engineers found that the engine was overloaded during the testing, which could lead to potential damage to the engine components.
   工程师们发现在测试中发动机超载，这可能导致发动机部件的潜在损坏。