您要查找的是不是：
- 硬度HB;hardness was HB;
- 硬度hardness
- 硬度計sclerometer
- 布氏硬度brinell hardness
- 洛氏硬度rockwell hardness
- 維氏硬度vickers hardness
- 洛氏硬度計Rockwell apparatus
- 高硬度high hardness
- 莫氏硬度Mohs hardness
- 布氏硬度計brinell's machine
- 表面硬度case hardness
- 總硬度total hardness
- 維氏硬度計Vickers hardness tester
- 顯微硬度microhardness
- 回跳硬度scleroscope hardness
- 硬石，金剛石一種曾被認為在硬度上不可穿透的石頭A stone once believed to be impenetrable in its hardness.
- Ｘ射線(xiàn)硬度X-ray hardness
- 巴氏硬度Barcol hardness
- 擺測硬度pendulum hardness
- 粘土的硬度temper of the clay
