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| 91. | corrected datum-level pressure |
| 折算基准面压力 |
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| 92. | depth at chart datum |
| 基准面下深度 |
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| 93. | datum for sounding reduction |
| 深度基准面 |
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| 94. | lower low water datum |
| 低低潮水位基准面 |
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| 95. | Hong Kong Principal Datum |
| 香港主水平基准 |
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| 96. | elevation of perm datum |
| 固定参考点海拔高度 |
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| 97. | Chart datum transfer techniques |
| 海图基准点转换技术 |
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| 98. | floating auxiliary datum plane |
| 浮动辅助基准面 |
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| 99. | centre of gravity datum |
| 重心基准 |
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| 100. | datum elevation of pump |
| 水泵基准面 |
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