Objective To study the effects of expansion fashion and expansion quantity on retention of cement_expanded composition screw post (CECSP).
目的研究膨胀方式和膨胀量对粘固膨胀复合型螺纹桩固位力的影响。
It is the base of research on heat expansion and heat transfer of single screw compressors.
它是研究单螺杆压缩机热膨胀及热传导的基础。
The purpose of the expansion screw is to fix the light box base and the concrete pier below.
膨胀螺丝用途是将灯箱底座与其下面的水泥方墩固定。
Objective:To evaluate the maxillary expansion effects of posterior crossbite patients treated with elastic wrapping bite guard and screw expansion mechanic in the mixed dentition.
目的：探讨弹性包绕式垫加螺旋扩弓器矫治替牙期后牙反的适用性及治疗前后的牙颌结构变化。
The power characteristics of a helical screw expander during its isentropic expansion was studied in detail with the concept of expansion ratio of peak power being proposed.
本文探讨了以汽水混合物为工质的螺杆膨胀机的定熵膨胀功率特性，提出了峰值功率膨胀比的概念。
The main structure and technical characteristics of screw extrusion expansion dryer were described and the improvement and application of the dryer were introduced.
简述了膨胀干燥机的基本结构，介绍了主体结构的改造及其应用效果。
In the article, the normal damage to the screw of the spiral food expansion machine and its conditions of tolerating force because of the comprehensive action of wear and corrosion are analysed.
本文对螺旋式食品膨化机螺杆由于磨损和腐蚀的综合作用引起的正常破坏以及受力情况进行了分析。
This paper studies the influence of extrusion temperature. Screw speed, feed speed and water content on starch gelatinization depolymerization, soluble index and expansion efficiency.
研究了挤压过程中，挤压温度、螺杆转速、进料速度、原料水分含量对淀粉的糊化、降解及对挤出物的溶解指数和膨化度的影响。
The feasibility of replacing expansion bolt by chemical glue screw bolt on glass curtain wall was discussed.
讨论了化学胶粘螺栓运用于玻璃幕墙的可行性。
My company mainly manages the bolt, the nut, the spring nut, the bolt, the gasket, the tooth stick, the expansion of metal screw, the heterogeneous pressing part, non-tender, hardware tool and so on.
本公司主要经营螺钉，螺母，弹簧螺母，螺栓，垫圈，牙棒，金属膨胀螺丝，异型冲压件，非标件，五金工具等。
In calculating on the basis of the results painted a screw expansion of the expansion process of pressure, temperature changes in relations with the corner of the map and a detailed analysis.
在计算结果的基础上描绘了螺杆膨胀机膨胀过程内工质压力、温度随转角的变化关系图，并进行了详细的分析。
A threaded hole is drilled in the middle of the expansion bracing, such as (Figs 4), which corresponds with the screw.
将膨胀拉条中间钻出一个螺纹孔，如(图4)，使之与螺丝相对应。
The screw extrusion expansion drying machine has the advantages of large conveying capacity, high melting performance, good drying effect of the machine.
该螺杆挤压膨胀干燥机具有输送能力大和熔融性能高，设备干燥效果好的优点。
The expansion screw has the advantages of simple structure, convenient use and reduced material consumption, and the screw can be withdrawn conveniently after the application.
本装置结构简单、使用方便、节省材料，并且使用后螺杆能方便取出。
The expansion screw has the advantages of simple structure, convenient use and reduced material consumption, and the screw can be withdrawn conveniently after the application.
本装置结构简单、使用方便、节省材料，并且使用后螺杆能方便取出。
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