短置，即买进股票作为短期投资，就是把短期内购进的股票先抛售，然后在其股价下跌的时候再将其买回来赚取差价（arbitrage）。
结果采用颈外静脉穿刺置管较颈内静脉穿刺一次进针成功率高，且完成时间短。
Results Higher success rate at a time and shorter puncture time were found in those who were performed puncture and catheter-placement in the external jugular vein.
通体呈四瓣瓜棱形，肩部一侧置短流，另一侧置曲柄，与流、柄成十字形的颈、肩之间置双系。
Quintana was four melon prism, set the side of the shoulder short flow, the other side of the crank set, and flow into the handle cross-shaped neck, between the shoulder rear dual system.
如果一个指针指向一个不在图中的对象，那么此对象就是一个不可到达的对象，垃圾收集器就将短弱引用表相应的槽置空。
If a pointer pointing to an object not in the graph, then the object is not a reachable object, and then garbage collector sets the slot to null in the short weak reference table.
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