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| 71. | direct flushing |
| 正循环洗井 |
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| | |
| 72. | direct displacement |
| 直接排代 |
|
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| | |
| 73. | direct division |
| 直接分裂 |
|
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| | |
| 74. | direct gyrostabilizer |
| 直接式陀螺稳定器 |
|
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| | |
| 75. | direct electrography |
| 直接电照相 |
|
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| | |
| 76. | direct filtration |
| 直接过滤 |
|
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| | |
| 77. | direct evidence |
| 直接证据 |
|
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| | |
| 78. | direct gasoline |
| 直接分馏汽油 |
|
|
| | |
| 79. | direct extraction |
| 直接浸出 |
|
|
| | |
| 80. | direct humidifier |
| 直接增湿器 |
|
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| | |