超压

On ultra precision lathe, author propose the principle of error in-process measurement and compensation of cylinder, end and contour, and use adjusted straightedge and sensor to build error on-line measurement and compensation control system of end turning.

研究了基于模糊数和插值原理的模糊控制算法，并用该算法实现了压电陶瓷微动刀架伺服系统的闭环控制，使其控制精度达到了±0.01μm；在超精密车床上，提出了圆柱面、端面和轮廓加工的误差在线测量与补偿原理，并利用标定的直尺和传感器建立了端面车削误差在线测量和补偿控制系统。

By the theoretical analysis of the subminiature breakdown of full flow during the test of the variable pump of constant voltage,we can find the reason of the breakdown and take measure to fix it.

通过对恒压式变量泵在试验中出现全流量超小故障的理论分析，找出了故障原因，并有针对性地采取了排除措施，即(1)减小弹簧刚度，(2)弹簧材料改为高温稳定性较好的材料，并经48小时加载荷压缩处理，(3)在试验中严格控制零流量压力公差，使故障有效排除，从而从根本上解决了生产中的疑难问题。

The objectives of this study are to investigate the cavitation intensity and acoustic pressure for various liquids of pure water, tap water, ethanol, ethylene glycol and tetrachloroethylene.

本研究针对纯水、自来水、乙醇、乙二醇、四氯乙烯及丙酮等四种化学溶液进行超音波音压及空泡强度的调查。

Flat sheet membrane ultrafiltration cup with membrane molecular weight of 70, 000 was used to concentrate PS-9415 solution.

采用了截留分子量为50，000的内压式中空纤维超滤器对PS-9415溶液进了浓缩分离的研究。

Major gas carburizing for steel parts used, the use of ultra-lining and the international advanced energy-saving vacuum sealed fan, the furnace pressure to increase without any leakage, temperature uniformity, warming fast, insulation, and an atmosphere of carbon potential uniform workpiece carburizing speed, uniform layer, the seriesPit Gas Carburizing Furnace greatly improved the productivity and quality of carburization.

主要供钢制零件气体渗碳用，由于采用超节能炉衬和国际先进的真空密封风机，使炉压提高，无任何漏气，炉温均匀，升温快，保温好，碳势气氛均匀，工件渗碳速度加快，渗层均匀，本系列井式气体渗碳电炉大大提高了生产效率和渗碳质量。

Major gas carburizing for steel parts used, the use of ultra-lining and the international advanced energy-saving vacuum sealed fan, the furnace pressure to increase without any leakage, temperature uniformity, warming fast, insulation, and an atmosphere of carbon potential uniform workpiece carburizing

主要供钢制零件气体渗碳用，由于采用超节能炉衬和国际先进的真空密封风机，使炉压提高，无任何漏气，炉温均匀、升温快、保温好，碳势气氛均匀，工件渗碳速度加快，渗层均匀，本系列井式气体渗碳电炉大大提高了生产效率和渗碳质量。

Major gas carburizing for steel parts used,the use ultra-l-ining and the international advanced energy-saving vacuum sealed fan,the furnace pressure to increase without any le-akage,temperature uniformity,warming fast,insulation good,and an atmosphere of carbon potential uniform seepage work-piece carbon

主要供钢制零件气体渗碳用，由于采用超节能炉衬和国际先进的真空密封风机，使炉压提高，无任何漏气，炉温均匀、升温快、保温好，碳势气氛均匀，工件渗碳速度加快，渗层均匀，本系列井式气体渗碳电炉大大提高了生产效率和渗碳质量。

Aiming at T-base diamond lathe, author use both on-line and off-line to measure the error vector of lathe workspace, and acquire good network train samples, then build two-dimensional error compensation model of lathe workspace with BP neural network and fuzzy neural network, at last build contour error compensation control system.

在分析国内外数控机床伺服闭环系统的发展现状及局限性的基础上，利用原数控系统和所研制的二维压电陶瓷微动刀架，研制了独立于原数控系统的超精密闭环控制系统。

Dobutamine stress echocardiography, radionuclide ventriculography, and right heart catheterization in the BMC group also showed significant improvement in stroke volume index, left ventricular end-systolic volume and contractility (ratio of systolic pressure and end-systolic volume), and myocardial perfusion of the infarcted region.

Dobutamine压力心脏超音波检查，放射性核脑室造影术和右心导管插入都显示，BMC组的脉搏容积指数、左心室终末收缩容积和伸缩力（收缩压和终末收缩容积比）以及梗塞区域心肌灌注明显改善。

To get the problem solved, a protection circuit has been designed, which contains a micro-current amplifier, an absolute window voltage comparator, an ultra-range tips circuit, a UREF benchmark constant voltage source circuit, and an executive circuit.

针对这一问题，设计了一个保护电路，整个系统由微电流放大器、绝对值窗口电压比较器、超量程提示电路、UREF基准恒压源电路、执行电路构成。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。