dental x-ray exposure alignment device光: light; ray曝光: exposure对准装置: alignment apparatus光对准曝光器: optical aligner管道对准装置: pipe alignment rig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:光曝光对准装置,即可在微信中查询翻译