We must carefully distinguish from theory the operational terms (to which it leads) that are then defined by procedure and observation, not by theory.
我们需要仔细地区分理论和操作术语，操作术语是理论引导来的，由程序和观察确立而不是由理论确立的。
The paper introduces construction procedure and quality control methods of the bridge, also discusses observation results of main arch ring during construction and completion of work.
文中介绍了该桥的施工过程和关键工序的质量控制方法，以及在施工过程中和竣工后对主拱圈的观测测量结果。
The general properties of pulsars are summarized and the procedure of observation is described.
本文简要介绍了脉冲星的基本特征与观测原理。
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