保险的打法是，先进入球道左侧的大开阔地，然后劈击一杆，球会顺着短而高的轨迹越过沙坑直接登上果岭。
The safe play is to the large left side of the fairway and pitch over the sand bunkers onto the green.
提出了平面四杆机构综合（包括函数综合、轨迹综合和导引综合等三类基本问题）的数值比较法。
The numerical comparison method is presented for planar four-bar linkage synthesis including function synthesis, path synthesis and guidance synthesis.
这对利用轨迹来设计齿轮—五杆机构中的各参数具有很重要的指导意义。
This is very helpful to design geared five-bar's parameters using locus curves.
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