长度: length; longitude; size; extent; footage 短语和例子各种长度 assorted lengths; (合乎)理想的长度 desired size; 它的长度合适。 it is of convenient length
过滤: [工业] filter; filtrate; screening; colation; filtration; filtering; lautering; colating; straining; filterion 短语和例子用沙过滤的 filtered through the sand; 固体颗粒从溶液中过滤出来。 the solid particles were fi
