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

在使用沙氏提取器时，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.

本在多用户XENIX操作系统中脱机印机安装方法及在实际使用中如何根据需要修改脱机印输格式,并在此系统中使用带有字库印机字体控制方法。

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.

针对全钢异型受力特点,提一种简单适用顶系梁安装吊杆施工方法。