When using sorbitic extractors, try to teach and explain packing method.

沙氏提取器时，应作试教，讲解安装方法。

This paper gives an installation method of off—line printer in XENIX System V, it alse gives some practical method to modify the output format in the system.

本文给出多户XENIX操作系统脱机印机的安装方法及如何根据需要修改脱机印的输出格式,并给出此系统带有字库印机的字体控制方法。

For the features of force on the full steel heterotypical arch bridge,an easy and appropriate method is proposed for installation of the hanger rod by jacking the tie beam.

针对全钢异型拱桥的受力特点,提出一种简单适的顶系梁安装吊杆的施工方法。