【摘要】 本文通过对几种材料耐磨性的研究 ,找到了作为输送天然河水用玻璃钢夹砂管较理想的内衬材料更多还原

【Abstract】 In this paper,through the study of abrasion resistant capability of several materal,rather perfect liner material of glassfiber reinforced plastic mortar pipes used for transporting savage water is given更多还原