unbalanced seal非: mistake; wrong; errors平衡: balance; equilibrium密封: seal; seal up; seal airtight ...平衡密封: balanced seal平衡密封器: balanced seal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:非平衡密封，即可在微信中查询翻译
