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| 51. | organ of survey |
| 调查机构 |
|
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| 52. | small area survey |
| 小区域调查 |
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| 53. | reservoir area survey |
| 库区调查 |
|
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| 54. | passenger transport survey |
| 客运调查 |
|
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| 55. | survey of anticipation |
| 期望调查 |
|
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| 56. | objective of survey |
| 调查目的 |
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| 57. | survey of intention |
| 意向调查 |
|
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| 58. | passenger source survey |
| 客源调查 |
|
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| 59. | air pollution survey |
| 大气污染调查 |
|
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| 60. | survey on vehicle |
| 随车调查 |
|
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