Objective: to study the relevant factors of children's ocular trauma and make the effective precautionary measures.
目的：探讨儿童眼外伤相关因素，制定预防措施。
Detailed analysis is done to the causes of while defects in lost wax casting. Some effective precautionary measures are proposed based on practical production.
对消失模铸造的铸件出现白色缺陷的原因进行了详细分析，并根据生产实际提出了一些有效的预防措施。
To make the patient safety and effective use, this paper expounds how to take effective precautionary measures to avoid the happening of the medical quality defects.
为使病人安全、有效用药，本文阐述如何采取有效的防范措施，避免医疗质量缺陷的发生。
The main factors that affect the machining precision and surface quality in high-speed wire cutting are analyzed. And the corresponding effective precautionary measures and handling methods are given.
分析了高速走丝线切割加工中影响加工精度与表面质量的主要因素，并针对这些原因分别给出各自有效的预防及处理方法。
To dispel this defect, the article analyses the seepage reason and puts forward effective and feasible precautionary measures in detail, making the aircrew operate safely and economically.
文章详细分析渗漏原因并提出有效可行的防范措施，消除此缺陷，使机组实现安全经济运行。
To dispel this defect, the article analyses the seepage reason and puts forward effective and feasible precautionary measures in detail, making the aircrew operate safely and economically.
文章详细分析渗漏原因并提出有效可行的防范措施，消除此缺陷，使机组实现安全经济运行。
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