1) double cascade quenching

二梯零火
2) fire-escape ladder

救火梯;救火梯
3) ladder-shaped parts

阶梯形零件
1.
The formulating process of cold extruding process for ladder-shaped parts are introduced in detail, the structural characters of cold extruding die design are generated basing on practice experience.
详细介绍了阶梯形零件冷挤压工艺的制订过程,根据实践经验总结了其冷挤压模具设计的结构特点。
4) Ladder machine parts

梯形类零件
5) zero pressure gradient

零压力梯度
1.
Through a study of the phenomenon of boundary layer transition on a plate at zero pressure gradient,the authors have concluded that the influence of the complexity of the transition flows on the boundary layer of a flow field should not be neglected.
通过对零压力梯度的平板转捩现象的研究得出以下的结论:转捩流动的复杂性对流场边界层的影响不容忽视;M-L转捩模型能比较准确地预测转捩的发生和发展过程,在高湍流度下使用全湍流模型来模拟转捩流动的误差较小。
6) elevator parts

电梯零部件
补充资料:救火
在失火现场进行灭火和救护工作:~车ㄧ消防队员正在~。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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