A small medium-sized Siheyuan usually has its main gate built at the southeastern corner.
一个小型或中型的四合院的主门通常设在院落的东南角。
High disposition built-in system, low pressure water pump device, test medium circulation storage use.
系统内配置高，低压水泵供压装置，试验介质循环贮存使用。
High disposition built-in system, low pressure water pump device, test medium circulation storage use.
系统内配置高，低压水泵供压装置，试验介质循环贮存使用。
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