即使是很微不足道的、无伤大雅的设计上的小小缺陷，最终也会被放大成巨大的阴影，因为API只需要提供一次，但是却会被调用很多次。
Even minor and quite innocent design flaws have a tendency to get magnified out of all proportion because APIs are provided once, but are called many times.
在其孔型设计中，合理地分配了成型道次和弯曲角。
The finishing passes and bending angel were reasonably distributed during pass design.
因此，以降低轧制功率为目标，优化设计道次压下量以取得降低能耗的目的，有着积极的作用和意义。
So it is very meaningful to optimize the assign of reduction, as to reduce power consuming index.
辊锻过程中金属变形及流动，与一般模锻工艺相比存在较大的差异，因而其工艺设计及初成形道次模具、整形模具设计也不同于常规模锻工艺。
The deformation and flow of metal in the process of roll forging are much different from those of ordinary die forging, So are the design of its technology, preliminary forming dies and dressing dies.
选择适当孔型系和辊锻道次，正确设计辊锻模，可在合适的辊锻机上完成双头螺栓的成形。
It is found that if the roll passes and the the rolling processes are reasonably chosen and the roll forging dies are designed properly, the stud can be formed on a suitable roll forging mill.
本论文开发的软件的主要功能是通过计算轧件在劈分孔型中的变形以及受力来确定轧件每个道次轧后断面形状从而设计出合理的孔型。
This dissertation can gain the size of profiled bar in any pass and design the proper pass by calculating the deformation and rolling-force of the steel in the pass .
设计了加工轨迹，通过实验研究，对成形路径，尤其是第一道次进行了优化，在此基础上加工获得了高径比为0.5的直壁筒形工件。
The vertical wall cylinder part with 0.5 height-diameter ratio can ultimately be formed in the practical manufacture after the forming track, especially the first optimal forming path.
非设计工况下流道的水力损失恒大于相同流量时设计工况下的水力损失，左侧的水力损失大于右侧的水力损失，且不符合二次抛物线变化规律。
The head loss of the left side is always greater than that of the right side, and the head loss curves don't comply with the second order parabolic law.
非设计工况下流道的水力损失恒大于相同流量时设计工况下的水力损失，左侧的水力损失大于右侧的水力损失，且不符合二次抛物线变化规律。
The head loss of the left side is always greater than that of the right side, and the head loss curves don't comply with the second order parabolic law.
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