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航道导标
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航道导标
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水运交通指示
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航道导标
由前后两座标志所构成的导线标示航道的方向的水上助航标志。指示船舶沿该导线标示的航道航行。
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substitution elasticity of factor
substitution equation
substitution formula
substitution group
substitution lattice
substitution map
substitution mapping
substitution matrix
substitution method
substitution model
substitution of aesthetic education for religion
substitution of the variable
substitution operation
substitution property
substitution rate
substitution [reaction]
substitution reaction
substitution rule
substitution system
substitution tensor
substitution test approach
substitution theorem
substitutivity
substochastic matrix
substoichiometric analysis
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