在这个程序之前，工程师和技术人员已经进行了测试运行、计算机建模培训和在一个仪器包模型上操作的培训。这是一个关键的任务操作。

Before the procedure, the engineers and technicians had trained with test runs, computer modeling and a mock-up of the instrument package. This is a critical mission operation.

youdao

连续使用收集的数据建模dcim和工程分析工具，如计算流体动力学(CFD)。

Continuous modeling USES the data collected by DCIM and engineering analysis tools such as computational fluid dynamics (CFD).

youdao

从产品性能公差设计的角度探讨分形公差理论的建模、分析、设计等有关方法，着重研究分形维数的计算理论和工程方法。

Some methods about fractal based tolerancing are discussed in this paper. The engineering calculation on profile fractal dimension is presented in detail.

youdao