Knowing the name of an exchange grants a client the power to publish messages to it, knowing the name of a queue the capability to receive messages from it.
客户端可以通过交换器的名字来发送消息，也可以通过队列的名字收取信息。
Plane FEM has capability of knowing precision degree of results by member structure method, and contracts with these of three dimensional whole model.
平面有限元计算，可以为了解具体工程条件下规程规范中采用的杆件系统计算精确程度，检查平面计算与三维整体模型成果的误差。
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