冷辗工艺广泛应用于环件的加工，在冷辗环数值模拟与优化过程中，圆度是重要的目标设计变量。

Cold rolling technology is applied to ring parts extensively. In the process of numerical simulation and optimization of cold rolling, roundness is a key object variable of the design.

youdao

分析了熔融拉锥过程的关键工艺参数，指出该过程是一个高度非线性、多变量耦合作用的复杂过程。

Through the discussion of the key processing parameters in the fused biconical taper process, firstly the paper pointed out that this process was highly nonlinear and multi variable coupled.

youdao

在PTA生产过程中，ta浆料浓度是一个极其重要的工艺变量，该变量控制的好坏直接影响最终产品的产量和质量。

In PTA process, ta slurry density is one of the most important technical index and can influence PTA's output and quality.

youdao