Objective To discuss the causation and prevention of concretion recrudescent after cholelithiasis operation.
目的探讨胆石病术后结石复发的原因及防治。
From the operation survey to synchronic motor thrust tile, this paper analyzes the causation of wearing producing and poses the treating measure.
该文详细分析了造成汽轮发电机组主油泵推力瓦磨损的原因，介绍了所采取的相应改进措施，以及取得的显著成效。
Based on the hardware structure and operation principle of the missile rudder electric loading system, the causation, mathematic model and test method of surplus torque are analyzed.
导弹舵电动加载系统的硬件结构和工作原理的基础上，因果关系，多余力矩的数学模型和测试方法进行了分析。
The present paper briefly described the construction of the vaporizer heated with water and pipe, analysed the causation of the questions existed in the trial operation, and expounded the improvement.
介绍了水浴式汽化器结构及管路，对调试中存在问题的原因进行了分析，并阐述了改进措施。
The present paper briefly described the construction of the vaporizer heated with water and pipe, analysed the causation of the questions existed in the trial operation, and expounded the improvement.
介绍了水浴式汽化器结构及管路，对调试中存在问题的原因进行了分析，并阐述了改进措施。
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