复合抛物面聚光器(或复合抛物面聚光集) compound parabolic concentrator 复合管线 compound pipe 复合型压力真空计 compound pressure and vacuum gauge ..
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The research direction of the compound pipe prepared by SHS was also pointed.
并指出了SHS陶瓷内衬复合管的研究方向。
The compound pipe is a kind of decorative material with luxurious appearance, high strength and reasonable price.
复合管是一种外观豪华， 强度高．价格适中的装饰材料。
The raw materials supply, production and application situations for aluminum plastics compound pipe are introduced.
介绍铝塑复合管的原材料供应现状、生产状况和推广应用情况；
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