植株树干用铝制套筒包着.Aluminum sleeves were placed around the stems.套筒必须将预计中积雪最高处以上的茎干包裹着.The sleeves must cover stems to a point above the greatest expected snow accumulation.此外, 在 长期 的使用以后套筒冠的固位力可能有显著地下降.Additionally, a marked d...
铰孔是孔的精加工手法之一.Reaming is one of the finish machining methods of hole.铰孔或攻丝时,不要用力过猛, 以免折断铰刀或丝锥.Do not overexert when reaming holes or threading, lest breaking off the reamer or the tap.点位系统适用于钻孔 、 锪 孔、扩孔 、 铰孔 、 镗孔 、 攻丝等孔加工...
能见度很差。Visibility was poor.能见度为。019。The visibility readout is .019.尽管能见度极差,飞机由雷达导航返航了.The pilot homed in by means of radar, despite the poor visibility....
The model of vibration picking for a vector hydrophone is established.摘要本文建立了矢量水听器的拾振模型,并分析推导了其拾振条件.Fiber optic hydrophone unit is the basis of fiber optic hydrophone system.光纤水听器探头是光纤水听器系统的基石.Compared with the pressure ...
每人可购买的票的限额已经由四张降至两张。The quota of four tickets per person had been reduced to two.银行写信来说我已经超过信用限额了.The bank has written to say I've gone over my credit limit.我们可能会斟酌改变限额，有任何变动将通知您。We may vary the limit at our discret...