To lengthen in duration protract.
延长增加持续时间持久
Protract ones stay for some weeks.
多呆了几个星期
to protract ones stay for some days.
多待几天
Protract And Design Project for Client
为客户绘制设计方案
Lets not protract the debate any further.
我们不要再继续争论下去了。
Simple protract method for the drawing of involute
渐开线齿轮齿廓的简便绘制
It can protract livespan and improve the corrosion periods.
延长了使用寿命, 大大提高了防腐使用周期。
Finally, protract a scale chart of the xinfeng town marshalling station.
最后, 绘制新丰镇编组站比例尺图一张。
High structure strengh，hot dip galvanized，greatly protract time of use.
高强度管材，产品经热镀锌处理，大大地延长了使用寿命
Delay always breeds dangerand to protract a great design is often to ruin it.
推迟经常孕育危险
Delay always breeds danger, and to protract a great design is often to ruin it.
推迟经常孕育危险, 拖延一个伟大的工程常常意味着毁灭它。
wide operation principle5, The import sapphire crystal protract longevity of service.
进口蓝宝石晶体, 寿命更长。
On the protract analysis of the movement chart diagram of the plane link lever mechanism
平面连杆机构运动线图的绘制方法
The result indicates that this software can protract good realtime spectral responsibility curve.
结果表明，该软件能很好地绘制出实时得光谱响应曲线。
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