例句與造句

1. Jt91 - 200 artillety gyro altazimuth is a fix instument which can research the grid north automatically and determine grid north azimuth at any direction . it works by making use of the physical features of gyro and influences of earth rotation . the equipment of this instument will play a important role in topographic clement
   Jt91 - 200型炮兵陀螺經(jīng)緯儀是利用陀螺本身的物理特性和地球自轉(zhuǎn)的影響，實現(xiàn)自動尋找其北方向和測定任一方向線的真北方位角的定向儀器。該型炮兵陀螺經(jīng)緯儀的裝備使用，對我軍炮兵測地分隊的測地保障發(fā)展將產(chǎn)生重大影響。
2. It's difficult to find grid north in a sentence. 用grid north造句挺難的