在测试的操作前的肺的功能上的部分和练习能力的试验已经被扩大。
The sections on preoperative pulmonary function testing and tests of exercise capacity have been expanded.
文中介绍了采用向网络操作前的原网络追加相应的支路阻抗阵来模拟网络操作的方法。
A method to simulate network operations by adding the corresponding Branch-Impedance Matrix to the original network is described in this paper.
40年前，出口或进口的过程涉及到许多操作步骤，这可能会导致一部分货物在运输过程中受损或被盗。
Forty years ago, the process of exporting or importing involved a great many stages of handling, which risked portions of the shipment being damaged or stolen along the way.
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