... 有勾缝的毛石墙：pointed squared-rubble wall 有盖作业地方：covered working area 有盖走廊;商场：arcade ...
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Completely Covered Working Area 全保护工作区域
Yes. The total laser torch working area is covered with a big seal light-proof class cover.
整个激光炬工作区域都在一个大型密闭耐光玻璃罩的保护下。
This device has a pretty big working area of 25 x 22 x 20.3 cm (9.8′ x 8.7′ x 8′), covered with the company's characteristic large, white plastic housing.
该器件具有25×22×20.3厘米一个相当大的工作区（9.8'×8.7“×8'），盖上公司的特点大，白色塑料外壳。
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