... flat land soaring 平地拖曳飞行 flat pad 发射平台 flat parachute 平面伞 ...
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flat pad iron 平垫铁
flat pad aerostatic bearing 静压空气平面轴承
flat-pad 发射台
Use of concrete pumping construction, pipeline installation to be straight and flat pad.
砼采用泵送施工，管道安装要顺直，并垫平。
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The school was built into a down-slope, so the recess yard in front of the school was a flat pad of concrete below street level.
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