在进入塔设计的经济优化方案之前，是本章讨论的最后一个话题，那就是如何决定塔器的直径和长度。
The last topic to discuss in this chapter before going into economic optimization of column design is how to determine the diameter and length of the vessel.
介绍了回采巷道复合顶板条件下采用小直径管缝式锚杆加钢筋梯式组合网支护的原理、方法和取得的经济效果。
The paper introduced the principle and methods of supporting combined the slit wedge bolt in small diameter with steel reinforcement in roadway with compound roof, and obtained economic effects.
该模型将同时得到经济流速、设备及管道最佳直径和经济保温厚度，可作为管道工艺设计的基础；
Meanwhile, the economic flow rate, optimum diameter and economic insulating layer thickness of the equipment and pipeline have been obtained with the model, which provide a basis for pipeline design.
针对这一问题，研究设计新型双筒式小直径抽油泵，进行了深抽采油工艺技术的试验研究，获得了成功，取得了良好的经济及社会效益。
In accordance with this problem, a new pump of small diameter with double barrel has been developed. Experimental study of the deep pumping process has been conducted and attained a success.
提出夯扩头最大直径计算方法，并对沉管桩和夯扩桩的经济效益进行分析比较。
The calculation methods of maximum diameter of ram extension hair is put forward.
认识土与沉入式无底大直径圆筒结构岸壁码头之间相互作用机制，对于它的安全和经济设计至关重要。
Understanding the interaction mechanism between the soil and a quay wall composed of large-diameter bottomless cylinders is vital to the safe and economic design of the quay wall.
认识土与沉入式无底大直径圆筒结构岸壁码头之间相互作用机制，对于它的安全和经济设计至关重要。
Understanding the interaction mechanism between the soil and a quay wall composed of large-diameter bottomless cylinders is vital to the safe and economic design of the quay wall.
应用推荐