谈到付款方式，您能告诉我你方在这方面的通常作法吗？
Talking of the mode of payment, can you advise mho of your regular practice in this respect?
现在的通常作法是按比例缩小的桥梁模型放在风洞里检测它们的空气动力抵抗力。
It is now common practice to test scale models of Bridges in wind tunnels for aerodynamic resistance.
我没有按通常作法将错误代码返回给父代应用程序，而是将错误打印到屏幕，然后退出程序。
Instead of gracefully returning an error code to the parent application, I print the error to the screen and bail out of the code.
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