中频穿透淬火工艺及相应的淬火机床的问世，对改善和提高我国的热处理工艺和设备水平有一定意义。
The appearance of the medium-frequency through quenching and the corresponding quenching machine has a great significance to improve the technology of heat treatment in china.
要使中厚板淬火控冷装置获得最佳的冷却能力，必须要保证冲击射流可以穿透钢板表面的滞留水层。
To make quenching and control cooling equipment of plate achieve optimum cooling performance, it is necessary to ensure the impinging jet able to penetrate through the water layer deposited on plate.
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