In the article, the pro-gram of pipeline section removal and new pipe section installation construction in winter and construction process are introduced.
介绍了跨越段管道冬季施工方案的制定和实施过程，施工经验可供同类管道施工时参考。
2
Introduces the composition and application of a microcomputer pro-gram used for designing and calculation checking of gear shaver, shaper cutter and hob-ber.
介绍剃齿刀、插齿刀、滚齿刀的微机设计和校验计算程序的编制及其应用。
3
This paper reviews the classification of degrees of systems education at the university of Hull, the principle, practice and philosophy dominating the teaching pro-gram of systems education.