local sewerage system
... local resistance 局部阻力 local sewerage system 局部排水系统 local street 地方街道 ...
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二地面采用不透水、防滑、耐重压且易于清洗之材料，并有适当斜度及排水系统以利排水，无局部积水之虞。
The floors shall be made of waterproof, anti-slippery, load-bearing, and easy-to-clean materials, and are sloped ina way that shall facilitate water drainage and keep the area from ponding.
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