balance gasequilibrium gasiodine penta-oxide method平衡: balance; equilibrium气: gas平衡气缸: balance cylinder平衡气缸盖: balance cylinder cover平衡气罐: relief holder下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:平衡气,即可在微信中查询翻译