The hardened area presents crescent looks just like prediction.

试件硬化带呈现预测的月牙形。

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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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Usually the surface would be hardened in a large area after completion of development and construction projects.

开发建设项目建成后往往使地表大面积硬化，从而改变项目区入渗、蒸发、地表径流量和特性。

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He said troops were making progress finding and clearing improvised explosive devices because the more battle-hardened, savvy insurgents in this area were being arrested.

CNN: Al-Zarqawi video 'act of desperation'