The paper described the rational distribution of the compressed air-suppl system, the design and installation of the tube system of the system.

本文简述了口腔供气如何合理配置压缩空气系统，管路的设计与安装。

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Choose two kinds of supplementary materials, imported Carboxymethylstach Sodium and Hyprolose, to have the contrastive experiments and make sure the use of final suppl.

选用两种辅料，进口羧甲基淀粉钠和羟丙纤维素进行对比实验，确定最后辅料的使用。

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Many products also use petroleum-based raw material inputs somewhere in the suppl chain.

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