btc before tocenter budc(before upper dead center)
Related Translations:
止: Ⅰ动词1.(停止; 拦阻) stop; cut out 短语和例子终止 stop; end; 中止 stop halfway; discontinue; suspend; 止住伤口出血 stop a wound2.(截止) close; end 短语和例子止于本月末 close at the end of this month; 申请到本月25日止。 the 25th of
