Each frame to doors fitted with a mortice lock is to be slotted for bolt, correctly positioned and to have a mortice cap welded on at back of perforation.
为匹配安装暗锁的门,每个框要为锁舌开槽,通过在其后打孔,在槽内焊接榫帽,使其正确就位。
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And then through all the tiny little perforations, small air bubbles will start to rise towards the surface, which create that upwards current that can lift plastic towards the surface, and then guide it towards the catchment system.
一些小气泡会因压力穿过管子上
微小孔洞,从下而上冒向水面,从而形成上升气流,将塑料冲到水面上,然后引到集水系统中。