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| 就地灌注混凝土桩; 现浇混凝土桩 | |||
| 现场浇注的混凝土桩; 钻孔灌注桩 | |||
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cast- in-situ concrete pile : 4 phrases in 2 subjects |
| Bridge construction | 2 |
| Technology | 2 |
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