bead assembly 中文意思是什麼
bead assembly
解釋
鋼絲圈-
The ger - kit assembly is made entirely of a sturdy black anodized aluminum ; the interior surfaces are bead - blasted to reduce off - axis reflections
Kit組件完全由堅硬的黑色電鍍鋁製成。內表面為霧珠面以減少軸外反射。
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