单词	velocity-head rod
释义	velocity-head rod 速头测杆
随便看	micrometer calipers micrometer callipers Micrometer cellulose micrometer checker micrometer collar micrometer-collar micrometer comb micrometer compensation micrometer compensator micrometer constant micrometer control micrometer cut adjuster micrometer cutting depth adjustment micrometer depth gage micrometer depth gauge micrometer dial micrometer dial gauge micrometer disc micrometer disk micrometer driven tuning mechanism micrometer-driven tuning mechanism micrometer drum micrometer electrode micrometer eyepiece micrometer eye piece