As for the gentleman himself, his feelings were chiefly expressed, not by embarrassment or dejection, or by trying to avoid her, but by stiffness of manner and resentful silence.
说到那位先生本人，他可并不显得意气沮丧，也没有表现出要回避她的样子，只是气愤愤地板着脸，默然无声。
Step by step, the life is hard to avoid delicacy and stiffness.
一步一骤，人生难免精致，却也死板。
Therefore, it needs to select the motor hanging rubber stiffness reasonably to avoid resonances of the structure of the driving gear.
因此，需合理选取牵引电机吊挂关节的刚度，避免基于电机点头振动固有频率及各结构部件固有频率的振动。
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