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京津城际铁路
释义
京津城际铁路
Encyclopedia
工学
〔著名铁路〕
释
Beijing-Tianjin Intercity Railway
京津城际铁路
中国北京至天津的城际铁路,是中国首条按照最高运行速度350千米/时设计并建设和运营的高速铁路。
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positive energy wave
positive entropy
positive excess coefficient
positive existential sentence
positive extension
positive eyepiece
positive feedback
positive feedback amplifier
positive film
positive flower structure
positive formula
positive function
positive functional
positive fundamental sequence
positive glow
positive Grassmannian
positive half-trajectory
positive helicity spinors
positive Hermitian kernel
positive Hermitian operator
positive homogeneous function
positive hull
positive image
positive index of inertia
positive infinity
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