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91. | image aspect ratio |
| 图像宽高比 |
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92. | aspect card system |
| 标号卡片系统 |
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93. | an essential aspect |
| 本质方面 |
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94. | shunt signal aspect |
| 调车信号示象 |
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95. | arm signal aspect |
| 臂板信号示象 |
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96. | three-aspect dwarf |
| 矮型三示象信号;矮型三示象信号机 |
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97. | finite aspect ratio |
| 有限纵横比 |
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98. | dual aspect convention |
| 复式记帐惯例 |
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99. | flashing signal aspect |
| 闪光信号示象 |
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100. | top light aspect |
| 第一位灯光示象 |
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