常見例句雙語例句A projectile-velocity measurement system using novel laser diode screen is introduced.介紹了一種新穎的激光光幕靶彈丸速度測量系統(tǒng)。The cost is high and the error is big in volumetric flow measurement method and velocity measurement .容積式流量測量方法和速度式流量測量方法存在費(fèi)用高，誤差大的缺點(diǎn)。By synthesizing twice MTD results, actual velocity of the target is gained. Relation between pulse duty ratio and velocity measurement error is deduced.綜合兩次MTD結(jié)果得到了目標(biāo)的實(shí)際速度，并推導(dǎo)出了脈沖占空比和速度測量誤差的關(guān)系式。 返回 velocity measurement