上止点 TDC ; top dead center
对开径向上止推轴承 cup-and-cone bearing
在上止点后 after top center ; after top dead center
上限截止频率 [物] upper cut-off frequency
上颌窦止血钳 maxillary sinus hemostat ; antrum heamostatic forceps
桥上禁止超车 NO OVERTAKING ON BRIDGE
上止点传感器 TDCS TDC Sensor ; Upper dead point sensor ; TDC sensor
上止动螺箝 upper clamp
在上止点前 before top dead center
直到1907年1月止，我们对行星上这部分与对月球背面同样的一无所知。
We knew nothing about this part of our planet as we did the back of the moon until Jan.1907 '' .
这种口头上的慷慨陈词实际上只是骗人的幌子而已，在它背后止是束缚世事、让人因袭守旧的不可动摇的习俗。
Such verbal generosities were in fact only a humbugging disguise of the inexorable conventions that tied things together and bound people down to the old pattern.
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