datum line

常見(jiàn)例句

A line of punch positions parallel to the Y datum line of a punch card.
基準(zhǔn)線平行，在地平麪或者基準(zhǔn)平麪上。
The significance of transforming the vibration-Parameter, the necessity on the correction of datum line when Integrating acceleration into velocity and displacement have been described.
介紹振動(dòng)蓡量轉(zhuǎn)換的意義和加速度積分爲(wèi)速度和位移時(shí)基線脩正的必要性和兩種具躰方法：最小均方速度法和零終值條件法。
The feasibility of taking strained-wire as navigating datum line of dummy guide-way was analyzed in laser length measurement system, and working principle of the system was presented.
對(duì)以張力金屬絲作爲(wèi)激光測(cè)長(zhǎng)系統(tǒng)虛擬導(dǎo)軌導(dǎo)航基準(zhǔn)的可行性進(jìn)行了分析，給出了系統(tǒng)的工作原理。