Nearly all civil engineering structures, ro of s, roads, and any concrete work have a run - off coefficient of about 95 per cent.

几乎所有的土木工程构筑物，屋顶、道路和所有的混凝土工程，其径流系数均为95左右。

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The core component of reverse osmosis using the world-famous Danish "grid to the rich" water pumps, the U. s. Navy was able to produce reverse osmosis ro membranes.

反渗透装置的核心部件采用世界著名的丹麦“格来富”水泵，美国海得能公司生产的反渗透ro膜。

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The core component of reverse osmosis using the world-famous Danish "grid to the rich" water pumps, the U. s. Navy was able to produce reverse osmosis ro membranes.

反渗透装置的核心部件采用世界著名的丹麦“格来富”水泵，美国海得能公司生产的反渗透ro膜。

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