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top-down method
释义
top-down method
Encyclopedia
工学
抗浮(拔桩)
释
top-down method
逆作法
沿建筑物地下室四周外墙施工地下连续墙或密排桩,既作地下室永久性承重墙的一部分又作基坑开挖挡土、止水的围护结构,同时在地下室柱的中心和纵横框架梁与剪力墙相交处等位置施工楼层中间支承柱,从而组成逆作阶段的竖向承重体系,随之从上向下挖一层土方,利用地模或木模(钢模),浇筑一层地下室楼层梁板结构的施工方法。
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frequency scanning antenna
frequency selective surfaces
frequency selectivity
frequency sensitive starter
frequency sensitivity
frequency shift
frequency-shift keying
frequency-shift keying, FSK
frequency-shift keying modulation and demodulation
frequency shift of scattering light
frequency shift theorem
frequency-shift track circuit
frequency-size distribution
frequency spectrum
frequency stability
frequency stability criterion
frequency stability measurement
frequency stabilization
frequency stabilized laser
frequency standard
frequency standards
frequency step
frequency sweep mode
frequency swept laser
frequency switching
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