upper strut上部: headpiece; ridge支撑: prop up; sustain; support上部支承板: upper support plate底部支撑: bottom sprag面部支撑器: face down supporter; face-dowm supporter; face-down supporter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:上部支撑，即可在微信中查询翻译
