在天花板接缝和灯具连接处的任何可见部分，都不允许有光线溢出的现象。
No light leaks are permitted at the ceiling line or from any visible part or joint of the fixtures.
避免了块材保温、接缝易开裂的弊病，且在各种转角处无需裁板做处理，施工工艺简单。
Avoid a piece of material heat preservation, juncture easy to crack headaches, and in all kinds of corner cutting board, do not deal with simple construction technology.
本文采用在GRC轻板的接缝处粘贴防裂带的措施有效地解决了墙体开裂。
The article introduces, as taking the measurement of sticking cracking-resistant adhesive tape at the joint between GRC boards, the cracks of the wall have been prevented effectively.
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