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- double quench hardening 二重淬火
- carburizing and quench hardening 渗碳淬火
- High Speed Numerical Control Milling Strategy with Quench Hardening Steel 淬硬钢的高速数控铣削加工策略
- Ferrous metals, non-ferrous metals, IC thin sections, coatings, ply-metals; Glass, ceramics, agate, precious stones;Hardness testing such as that on the depth and the trapezium of the carbonized layers and quench hardened layers. 黑色金属、有色金属、IC薄片、层压金属、表面涂层；玻璃、陶瓷、玛瑙、宝石等；炭化层和淬火硬化层的深度及梯度的硬度测试。
- Study on the Force of High Speed Milling of Quench Hardening Steel with Nitrogen Media 氮气油雾介质下淬硬模具钢高速铣削时铣削力的研究
- repeated quenching hardening test 重复淬火硬化试验
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- I want a double room with a view. 我要一间能看到风景的双人房间。
- He was so fat that he had a double chin. 他胖得有双下巴了。
- The carpet is too thick to double up. 这地毯太厚没法折叠。
- quench harden 淬硬
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- Reserve double room June fourth to tenth inclusive. 预订双人房间，六月四日至十日，共六晚，望订妥复电。
- quench hardeningn. 淬火硬化(急冷硬化)
- In this case, I can double for penalty. 假如这样的话，我可以叫加倍了。
- Can you tell me the rate for a double room, please? 请告诉我一间双人房的费用可以吗？
- The soldiers came at the double. 士兵们是急行军来的。
- quench hardening steel 淬硬钢
