... mechanical controllable pitch propeller 机械式可调螺矩螺旋桨 mechanical convection 机械对流 mechanical conveyance system 机械传递系统 ...
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论深热带对流的机械有效性。
模型的控制方程不仅如通常那样包含对流项和传导项，还包含许多文献中常被忽略的热机械弥散项。
The governing equation of our model contains not only the convection and conduction terms, as usual, but also the heat dispersion term, which is neglected la many papers.
高速泵是一种特殊的离心泵，它的出现对流体输送机械设计人员提出了新的要求和挑战。
High-speed pump belongs to a specific centrifugal pump, and its appearance has put forward new requests and challenges for those designers.
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