压出

This paper put forward and studied the technique of magnetic levitation based impacting and upending which can impact efficiently with the advantages of non-touch,non-concussion,high-reliability and low-cost.

研究了自动化检测设备辅机中的磁悬浮压紧扶正技术，实现非接触、无冲击、高可靠性、低成本的有效压紧，给出了3种可行原理和结构形式。

And we has also accumulated original and mature experience in designing, manufacturing and assembling of bolt tightening system, press riveting and welding system, automobile seatbelt assembling special machine, pin and shaft press installing machine, transplanting machine, aerial material flow line, material flow line, lifting equipment, balance crane, fixture etc.; To meet its clients' demand, Congyu has independently developed many sets of special machine of high technology and great difficulty, which involves the clearance detection, angle control, sealing test, torque control and displacement control etc.

并在螺栓拧紧系统、压铆焊接系统、汽车安全带装配专机、销轴压装机、移栽机、空中物流输送线、物流输送线、提升机、平衡省力装置、各种产品的工装夹具等方面有独到成熟的设计、制造及组装经验；应客户要求独立开发出多套间隙检测，角度控制，密封性检测，扭矩控制，位移控制等高技术、高难度要求专机，在此基础上，不断创新并开发了清洗机等新产品和太阳能新领域，并为太阳能行业开发了自动上下料机、酸碱清洗机和自动插片机，接线盒涂胶机，自动裁切机，测试分选机等一系列生产和测试设备。

The second step:.add nitrogen gas into the system,check whether pressure gauge changed after 24 hours, if the pressure drops, that means sealed system is not good, need to find out the leakage point and repair welding.

第二步，将封好的系统，冲入氮气封好，饱压24小时，看压力表掉压了没有，如果压力下降，证明制冷系统没有封好，需要找出漏点，进行补焊。

On the basis of shear resisting behavior experiments of the column, the formula model for calculating the shear strength of the column is presented, and the undetermined coefficient in the formula is regressed using the experimental data.

进行了钢管高强混凝土核心轴压短柱的轴心受压试验，研究了其破坏特征、延性和钢混共同工作特性等力学性能，给出了其极限承载力的计算公式。

this paper basis on the current codes,taking axis compressive resistance concrete column bearing capacity formula as constraint condition., taking cost as objective function, taking reinforcement diameter and concrete strength grade as design variables, giving an optimization design, got the best basic parameters which satisfied application conditions,to provide better calculation for the axis compressive resistance concrete colum design.

本文以现行规范为依据，以混凝土强度理论推导出的轴心抗压混凝土柱的承载力计算公式作为约束条件，以造价为目标函数，以混凝土中的钢筋直径、混凝土强度等级为设计变量，对其进行优化设计得到了满足使用条件下的最优基本参数，为轴心受压混凝土柱的设计提供了较好的计算依据。

Introduced as a control with AT89C52 single-chip core voltage tester hardware and software design methods, the paper gives the design of the voltage tester hardware block diagram and detailed flow analysis software.

介绍了用AT89C52单片机作为控制核心的耐压测试仪的软、硬件设计方法，文中给出了所设计的耐压测试仪的硬件原理框图、详细的软件流程分析。

The results show that the most engineering practical columns behave like the interaction of local buckling and overall buckling, and local bucklings of plates do not mean the lost of carrying capacity of overall structures at once.

用本文提出的有限条塑性系数增量初应力法分析了钢偏心压杆局部与整体相关屈曲的极限承载力，得到了中截面的屈曲模式，表明大部分的工程实际的压杆均表现出明显的局部屈曲与整体屈曲的相互作用，板件局部屈曲，并不意味着结构整体立即丧失承载力。

Methods: Under peridural anesthesia, the right rectus incision was adopted. First, the vessels in lesser curvative of stomach was amputated and ligated. Second, splenic artery was ligated to deflate spleen .Then ,splenic artery and renal vein were amputated and side-to-side anastanosised with each other. Result: Of the 36 cases,the portal free pressure decreased by different degree in 23 cases, unchanged in 10,and increased in 3 postoperatively. The follow-up ranged from 1 to 5 years.

在硬膜外麻醉下经右腹肌切口进腹、采用先作胃小弯的血管彻底离断，再结扎脾动脉、使脾脏缩小后，而后分离出脾静脉和肾静脉进行端侧吻合，结果：36例中23例病人吻合后测得门脉自由压均较分流前有不同程度的降低，10例门脉自由压未变化。3例高于分流前压力。

Three-quarters of the patients showed nocturnal nondipping of blood pressure, the authors report, but their systolic blood pressure during the day did not differ from that of patients with nocturnal dipping, and the diastolic blood pressure of nondippers was een lower than that of dippers.

研究人员声称，四分之三的患者表现出夜间非勺形血压，但是他们在白天的收缩压与夜间勺形血压患者并无两样。非勺形血压患者的舒张压甚至比勺形血压患者更低。

The piezoelectric activities of the porous PTFE electrets mainly depended on the charge storage ability of the electrets themselves.

研究结果指出：(1)常温下，多孔PTFE驻极体的准静态压电系数d33随充电时间的延长而增加，并呈现出线性区、非线性区和饱和区三个区间，多孔PTFE驻极体的压电活性主要依赖于这类材料的电荷储存能力。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。