通过可调刮削器将金属切屑剥离，并关闭排放槽。
The metal swarf is stripped from the drum by adjustable scrapers and forced off the end of a discharge chute.
倾泻，倾倒：沿一个槽或好象沿一个槽那样倒，倒空或排放。
To pour, empty out, or discharge down or as if down a chute.
大气会成为我们主要的废气储存槽，是因为透过烟管、排气管与烟囱排放废气，做起来最简单，直觉上也最省钱。
The atmosphere has been our prime waste repository, because discharging exhaust up through smokestacks, tailpipes and chimneys is the simplest and least (immediately) costly thing to do.
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