Combining the actual situation of site, guided by the principle of economy, the article introduces the design and manufacture of production line of long line pretensioning prestressed concrete crane girder, the manufacture and installation of template, the stretch and release of prestressing bar, the concrete depositing and the steam curing in detail.

The paper presents the conditions of distributed paramtters of long line and produces an effect on the transmission line parameters.

Electrical fast transient(EFT) was applied to study the coupling effects to long-line of the controller in order to investigate a specified long-line controller s immunity ability of electromagnetic pulses(EMP).

For reducing workload,only moving the location of suspension clamp on some pole tower,without tight line and to keep strain section line length,it need calculate the mark-height after moving beeline pole tower.

It uses line length equal method to calculate the sag and the mounting position of the suspension clamp in continuous inclined spans of overhead power line.

Optimization of culture medium and growth curve of thermoacidophilic bacteria in apple juice;

The growth curve and significance of different species of microorganisms on automatic blood cultivator;

Effect of sodium butyrate on configurition and growth curve of HT-29 cells.;

A new method of measuring the stitch length of weft knitted fabric;

To enhance the reliability and automation of stitch length measurement,a stitch length measuring system through processing the scanned image based on MatLab was introduced.

This paper describes the testing methods for stitch length of weft knitting presently,including static measurement,dynamic measurement and association of static and dynamic measurement,and analyze the points of these methods.