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| 71. | office practice |
| 办公室实务 |
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| 72. | budget practice |
| 预算措施 |
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| 73. | sighting practice |
| 瞄准练习 |
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| 74. | recognized practice |
| 公认的惯例 |
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| 75. | shielding practice |
| 钢流保护法 |
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| 76. | weekly practice |
| 一周实习 |
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| 77. | current practice |
| 现行方法 |
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| 78. | universal practice |
| 普遍的做法，普遍情况 |
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| 79. | constant practice |
| 经常不断的练习 |
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| 80. | recommended practice |
| 操作规程建议 |
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