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81. | gap-graded aggregate |
| 间断级配骨料 |
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82. | maximum air gap |
| 最大气隙 |
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83. | inter- island gap |
| 岛间峡谷 |
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84. | gap-type filter |
| 片式滤清器 |
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85. | protective spark gap |
| 保护火花隙; 安全火花隙 |
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86. | gap sleeve blouse |
| 反袖口上衣 |
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87. | gap squaring shears |
| 空隙剪压机 |
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88. | master spark gap |
| 主控火花隙 |
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89. | gap-chord ratio |
| 节弦比 |
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90. | inter-record gap |
| 记录间隔 |
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