F: Feel free to drop by my office if you have a question.
F:如果有问题,请不要客气,随时到我的办公室来。
A volume fraction specification, f, is used to define fluid region, and to track the movement of free boundaries.
用一个体积分数F来定义流体区域,并用它来跟踪自由界面的运动。
The repaired or new Equipment parts will be delivered to the Purchaser F. O. B. Corporation's Plant free of charge if the Equipment part returned was warranted hereunder.
修理件或调换的新件在公司的工厂按出厂价交付买方,如所退设备部件属本协议的担保范畴,则可免费。
The free-body diagram, it says you can pick any one body that you like and apply F = ma to it, provided you identify all the forces acting on that body.
所谓隔离法,就是说你可以任意 选取一个物体,分析出它所受的所有力后,单独对其运用 F = ma 进行计算
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