case hardened glass 中文意思是什麼
case hardened glass
解釋
表面硬化玻璃-
Door window should be made out of hardened glass in order to protect worker in case of leakage and broken valve
觀察門上需安裝有鋼化玻璃,保護操作者,防止被測地泄漏和破裂。
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