Metallographic change is also researched. The hardened surface band depths as well as hardened surface band widths were obtained.

获得了金相组织的变化，获取了试验后的硬化层深度和宽度。

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As the size of parts to be hardened increases, the surface hardness decreases somewhat even though all other conditions have remained the same.

即使所有其它条件保持不变，随着要淬火的零件尺寸的增加其表面硬度也会有所下降。

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The experimental results show that the surface hardened layer consists of non-full transformation area which is adjacent to the base metal and surface full transformation area.

实验结果表明，合金铸铁光束表面相变硬化层由与基材相邻的不完全相变区及表面完全相变区组成。

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Hydraulic fracturing pumps many thousands of gallons of mainly water and sand, with a few chemicals, at high pressure into tight gas-bearing shale deposits (hardened muds), creating cracks that allow gas to flow back up the well to the surface ( Shale Shock).

FORBES: The Fracking Solution Is A Good Cement Job