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| 51. | inquiry about market information |
| 市场信息调查 |
|
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| 52. | survey of main units |
| 重点调查 |
|
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| | |
| 53. | extensive exploration |
| 广泛调查 |
|
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| | |
| 54. | actuarial investigation |
| 精算调查 |
|
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| | |
| 55. | forest inventory |
| 森林资源调查 |
|
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| | |
| 56. | initial inquiry |
| 初次调查 |
|
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| | |
| 57. | economic investigation |
| 经济调查 |
|
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| | |
| 58. | administrative census |
| 行政调查 |
|
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| | |
| 59. | exhaustive survey |
| 彻底调查 |
|
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| | |
| 60. | detailed (minefield) survey |
| 详细调查 |
|
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| | |