unconfined compressive strenght test

例句：

1. 1. The engineer conductedan unconfined compressivestrength test on the concrete beam to determineits strength.
   工程师对混凝土梁进行了无约束压缩强度测试，以确定其强度。
2. 2.During the testing, the stress was appliedin a way that would not restrict themovement of the material.
   在测试过程中，应力施加的方式不会限制材料的移动。
3. 3. The resultsof this test are crucial for understanding thebehavior of materials under compression.
   这种测试的结果对于理解材料在压缩下的行为至关重要。