The first stage is called primary rolling, or cogging.
这个阶段叫作初轧或开坯。
The problems existed at primary rolling plants in china are comprehensively analysed, and the necessary measures to increase the billet yield are proposed accordingly.
综合分析了我国初轧厂目前存在的一些问题。提出了进一步提高成坯率应做的工作；
Today, rolling suitcases have replaced bamboo poles as the primary means of hauling loads, and the walk across Suzhou station's platforms is a leisurely stroll.
今天，拉杆箱早已取代了扁担，在苏州火车站，通往站台的一段路途也变成了闲庭信步。
The principle of primary air curtain machine is to move the wind wheel rolling stock motor, a door to the weak invisible space room heating and cooling, heating and cooling to prevent loss.
风幕机的原理首要是以电机股动风轮滚动，构成一道微弱无形的风门来间隔室内的冷暖气，防止冷暖气的丢失。
He Liangcai, a farmer with a primary education, invented and patented what could be called a scootcase, taking rolling luggage to a whole new level.
小学文化水平的农民贺亮才发明了一款电动载人行李箱，并为其申请了专利，他的这一举动将滑轮行李箱带进了一个新高度。
Effects of temper rolling on the cubic texture formation in primary recrystallized electrical steel were investigated.
尝试了小形变量轧制对立方织构电工钢织构形成的影响。
The primary principia is that the customer's require are above all and what we do is just to bring them new and safe in rolling shutter experience.
我们的产品及服务保证严谨可靠，秉承着服务至上、客户第一的原则为广大客户带来新颖、安全的卷闸产品。
The primary requirement of cold-rolling feeds, and the equipment design, production management and material flow of thin slab continuous casting and rolling, were investigated in the paper.
本文通过分析冷轧基料的一般要求、薄板坯连铸连轧工艺的设备配置、生产组织和物流衔接，提出了薄板坯连铸连轧工艺大规模生产冷轧基料的具体措施和建议。
In view of the characteristics of the separate arranged PWR primary loop in nuclear power ship, the different influences of pitching and rolling on natural circulation ability have been analyzed.
针对分散布置的核船压水堆一回路的特点，分析了船舶纵摇和横摇对自然循环能力的不同影响。
Aimed at a uniform distribution of driving torques, an optimization design of pass parameters is carried out for primary bar rolling mills.
以某棒材粗轧机组力矩均衡分配为目标，对各孔型尺寸进行了优化设计。
The physical and mathematical models of primary loop natural circulation ability at motionless state and under the influence of heaving and rolling conditions are established.
建立了一回路的自然循环能力在稳定状态时和受到摇摆、起伏等影响时的物理、数学模型。
The physical and mathematical models of primary loop natural circulation ability at motionless state and under the influence of heaving and rolling conditions are established.
建立了一回路的自然循环能力在稳定状态时和受到摇摆、起伏等影响时的物理、数学模型。
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