| 摘要 |
A safety net assembly and system is provided which includes at least two rods having attaching brackets at their ends. The brackets may be engaged over ledges in a frame that defines an opening over a subterranean work place. A net or webbing is slideably engaged on the rods, so that it may be opened for access and spread to cover the opening, to prevent a person from falling through the opening when the assembly or system is in place. Where there are insets in the ledges, the assembly or system may be left in place without interfering with the placement of a normal cover for the opening.
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