[音频]make (sth.) a part of a group or of sth. larger
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[音频]the system of buses, trains, etc. which people use to travel from place to place
所谓互换性,就是同一规格的零件制成后,在装配时应________________________,装成的机器应能满足_________________________。
完全互换一般适用于___________________,分组互换一般适用于____________________________。