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| 路面弯曲仪; 挠曲仪 | |||
| 杠杆弯沉仪; 贝克曼弯沉仪; 贝克曼梁; 弯沉仪 (用于路面弯沉测量); 测量路面挠度用贝克曼测杆; 路面挠度仪; 路面弯沉仪 | |||
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Benkelman beam : 4 phrases in 1 subject |
| Technology | 4 |
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