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民用航空
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民用航空
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民用航空
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civil aviation
民用航空
使用航空器从事除了国防、警察和海关等国家航空活动以外的航空活动。分为运输航空和通用航空两部分。简称民航。
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non-diagonal
non-diagonal element
non-diagonal term
non-diamagnetic plasma
non-differentiability
non-differentiable
non-differentiable curve
non-differentiable function
non-differentiable mapping
non differentiable optimization
non-differentiable optimization
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non-differentiable programming
non diffracted acoustic beam
non-diffracted acoustic beam
nondiffracted acoustic beam
nondiffracting beam
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non-dimensional
nondimensionalization
non-dimensional number
non-diploma certificate
nondipolar
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