invest shell thermal deformation tester

例句：

1. 1. The thermal deformation tester is used to measure the thermal expansion and contraction of materials under high temperature conditions.
   热变形测试仪用于测量材料在高温条件下的热膨胀和收缩。
2. 2. The investment testing instrument is crucial for assessing the performance of a new product before it is launched.
   投资测试仪器对于评估新产品在推出前的性能至关重要。
3. 3. The thermal deformation tester has been proven to be an effective tool for detecting defects in metal parts during the manufacturing process.
   热变形测试仪已被证明是检测金属部件制造过程中缺陷的有效工具。