exchange-compression strokeexpansion-exchange stroke换气: take a breath; aeration chan ...压缩: compress; condense; reduce; ...行程: route or distance of travel; ...压缩行程: combustion stroke; combustionstroke; compression cycle; compression travel; compressionstroke; instroke; pressure stroke; scavenging-compression stroke压缩行程阀: compression valve下载手机词典可随时随地查词查翻译
