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| V 形截面雨水槽; V形槽; V形砌沟 | |||
| V形截面雨水槽管; 屋面斜排水沟; V形水槽; V形截面雨水槽; V形沟 | |||
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V-gutter : 6 phrases in 2 subjects |
| Space | 5 |
| Technology | 1 |
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