The technical comparison shows that the laser centeringinstrument is superior to conventional centering methods in the installation and adjustment of equipments.
通过技术比较，证明激光对中仪用于设备的安装调试具有传统对中方法难以比拟的优势。
2
The principle, constitution, main technical parameters, instrument features and its application of a novel TV interior focusing and centeringinstrument are introduced in the paper.
介绍一种新型的电视内调焦定心仪的原理、结构、主要技术参数、仪器的特点和应用。
3
This instrument can be used for centering during edging and cement, and testing centering error of lenses.