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有限空间通常指密闭或半密闭，进出的方式受限，具有一定空间，不在此连续工作的场所。通常有：槽、罐、塔、釜、槽车、地下贮池、炉膛、沟道、烟道、管道、排风道、筒仓、地坑、贮藏间等。在有限空间内进行焊割等动火作业和其他作业危险性大，主要危险有：１．缺氧。有限...
Limited space usually refers to airtight or semi-airtight, access to the limited way, with a certain space, not in this continuous work place. Usually: tank, tank, tower, kettle, tank truck, underground storage tank, furnace, channel, flue, pipe, exhaust duct, silo, pit, storage and so on. In a limited space for welding and other hot work and other operations dangerous, the main danger: 1. Hypoxia. limited...