He hopes to find ways to keep temperatures down: possibilities include painting the kurgans white to reflect sunlight away, and installing underground “thermo-pumps” to stabilise the temperature.
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The installing and debug of the domestic laser director in underground oblique opening excavation are mentioned. The merit and notice of using laser director is mentioned too.
本文主要叙述了国产激光指向仪在地下斜巷掘进中的安装、调试以及使用激光指向仪的优点和注意事项。
Access control system: Reserve enough space for installing the access control system, underground garage and public area will install access control system.
门禁系统：每栋建筑内预留门禁系统穿线空间，地下车库及公共部分设立门禁系统。
This product has the characters of water and damp proof, inflexibility. It is the necessity of installing underwater electromotor and pump, and underground cables.
本产品用于深井电机、潜水泵、地下电缆等安装设备材料。绝缘防水、防潮、包扎后不开口，不脱落等特点。
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