公司专业生产塑料托盘(plastic pallet)、塑料周转箱(turnover box)、物流箱(circulation box)、塑料垃圾桶（plastic dustbin）、零件箱(parts box)等及各种大中型塑料制品(plastic products)。
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green circulation box 绿色循环箱
Make the mobile book box to become an effective approach for book circulation in elementary school libraries.
漂流书箱成为小学图书馆提升图书流通率的有效方式。
Properties : The working principle of air conditioner is that air refrigerates in the evaporating box through circulation.
性能特点：空调的使用原理是让环境中的空气在蒸发箱中循环得以制冷。
There are some problems in modelling karst water circulation using hydrological model as lack of information of groundwater distribution in karst system (black box or grey box).
由于岩溶地下水分布难以量测，岩溶水文系统多为黑箱或灰箱，采用岩溶水文模型量化其水循环过程常存在许多疑难问题。
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