Persuading people to switch their phones off altogether when they get behind the wheel might be the only answer.
说服人们在开车时关掉手机可能是唯一的方法。
Handling the machine manually, use the additional speed switch (the handle multiplier), which can change the value of displacement equal to one skip on the scale of the hand-wheel.
人工操作机床,使用附加速度开关(手动倍率开关)能改变手动轮一个刻度的位移量。
In this paper, the mechanical models and calculation method are advanced for calculating the variation regularity of wheel load and the structure irregularity of the switch proper of turnout.
提出了求解道岔转辙器部分轮载的分布规律及结构不平顺的力学模型与计算方法。
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