...关键词： 城镇燃气；入户安检；用气安全；隐患整改 [gap=8587]Key words: city gas；home safety inspection；using gas safety；hidden dangers rectification ...
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Objective: To investigate the effectiveness, safety and feasibility of using rigid gas permeable contact lenses (RGP) in young children.
目的：探讨低龄儿童配戴硬性接触镜(rgp)的有效性、可行性和安全性。
And by using the corresponding control algorithm, realize supply of gas supply constant, improve the quality and efficiency, and ensure each work of safety for production.
并利用相应的控制算法，实现供气的恒定，提高供气质量和效率，保证各项工作的安全生产。
Using the method of fire and explosion indexes, a safety assessment is made of the production device in a gas-cleaning plant.
采用火灾爆炸指数法对天然气净化厂生产装置进行了安全评估。
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