upper level上部: headpiece; ridge水平: horizontal; level standard; ...上部水平支撑: top lateral bracing; upper lateral bracing上部水: top water上部水泥塞: tocement plug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:上部水平,即可在微信中查询翻译