The following factors were considered in heat loss calculating model, namely various valves, elbows, compensator, tube diameter, various injection conditions and injecting pipe's eccentric structure.
模型考虑了注汽管线上各种阀门、弯头、补偿器、异径管的影响，考虑了变注入工况和注汽管偏心结构对热损失的影响。
At last, with the same model and the same conditions, the relationship between pile depth, pile diameter and the anti-earthquake ability of the structure was studied, some conclusions were made.
最后，针对同样的结构体系，利用以上程序分别计算分析了在其他条件一致的情况下桩深、桩径对结构整体抗震性能的影响，得出结论。
Set the height of accelerating section and decelerating section, ratio of pipe-diameter as alterable parameter, the mathematic model of structure optimization was established.
将加速段、减速段高度及其管径比作为可变参数，建立了结构优化数学模型。
The utility model has the advantages of simple structure, low cost and high convenience and practicability, and the utility model is suitable for the welding operations of various diameter barrels.
本实用新型结构简单，成本低廉，方便实用，适用各种直径筒体的焊接操作。
The utility model has simple structure and overcomes the problem of wheel rim on the tyre with small tyre diameter.
本实用新型结构简单，克服了小轮径轮胎上瓦圈的困难。
The utility model has simple structure and overcomes the problem of wheel rim on the tyre with small tyre diameter.
本实用新型结构简单，克服了小轮径轮胎上瓦圈的困难。
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