麻辣变形计保护玉石,变形计用英文怎么？

[词典] deformation gauge;

[例句]新疆乌恰7.4级地震前钻孔变形计所观测到的前兆异常

Precursory anomaly observed by drill-hole deformeter prior to the Wuqia earthquake with magnitude 7.4 in Xinjiang