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Underground diaphragm wall had been great used in enclosure structure of subway and deep foundation.
地下连续墙在地铁及深基坑的围护结构中已广泛使用。
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This plastic enclosure is used for the power or light switch.
该产品为电器，灯具塑料开关外壳。
youdao
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This plastic enclosure is used for the power or light switch.
该产品为电器，灯具塑料开关外壳。
youdao