查询词典 precision barometer

A series of simplified mathematics models for analyzing the precision of the firing initial data and assessing the firing efficiency under the condition of computer are established to the accompaniment of software application which could be used in the determination of firing initial data, real-time precision analyzing and aided decision making.

建立了计算机条件下射击开始诸元精度分析和射击效率评定的一系列简化数学模型。建立了决定火炮射击开始诸元、实时精度分析和辅助决策的应用软件。

Worm, belt wheel, coupling, fasteners (special-shaped nut, welding nut, flange nuts, plate nuts, screws, etc.) Precision metal parts, Precision shaped mechanical parts / sleeve, stretch.

蜗杆，同步带轮，联轴器，，紧固件(异形螺母，焊接螺母，法兰螺母，盘形螺母，螺丝，等)精密五金零配件，精密异型机械配件/轴套，伸。

Worm, the timing belt pulleys, couplings, fasteners (profiled nut, welding nuts, flange nuts, disk-shaped nut, screws, etc.) precision metal parts , Precision machinery parts Shaped / bushings, stretch.

蜗杆，同步带轮，联轴器，，紧固件(异形螺母，焊接螺母，法兰螺母，盘形螺母，螺丝，等)精密五金零配件，精密异型机械配件/轴套，伸。

Simultaneously, the exports of ionization rate and nonionzed concentration are set up as a powerful tool for studying thoroughly the freeze-out effect. dN〓/dp and dN〓/dn are neglected in the linearized equation system of the iteration methods of Newton and Gummel, due to having lower 15 orders or more than dN〓/dn and dN〓/dp, thus the computing effort is cut down with no effect on precision. A new cut-off technique is adopted to accelerate the convergence speed, about twice reduced for Newton iteration method and six times or so for Gummel iteration method. The approximate formulae of Fermi-Dirac statistics are also put forward with simpler form and higher precision. 3. A term dependent on time is added to the electron and hole current succession equations respectively. It is only this model that conservation of charge in transient analysis and alternating small-signal analysis at low temperature can be kept by. 4. The performance of SE-PISCES is explained by the simulation example of PISCES-2B, diode.

研究了低温半导体器件模拟的数值方法：对载流子浓度进行了新的归一化；编制了不考虑掺杂所引进的内建电场时的电离率计算程序；由于低温杂质电离率随偏压状态而变化，为此编制了每次求解迭代时的电离浓度计算程序，并将其插入到求解迭代程序中；同时，设置了杂质电离率和未电离杂质浓度的出口点，为更深入地研究冻析效应提供了有力工具；在Newton迭代法和Gummel迭代法的线性化方程组中忽略了dN〓/dp、dN〓/dn，是因为它们比dN〓/dn、dN〓/dp低15个数量级以上，这样减小了计算量又不影响模拟精度；对Newton迭代法和Gummel迭代法采取了新的截断技术，提高了收敛速度，Newton法迭代法和两次左右，Gummel法减少六次左右；给出了表达式更简单而精度更高的Fermi-Dirac积分近似计算公式。

The strength of our company is specializing in the production of electronics, electrical products on the nebulizer used copper head, pneumatic valve, gas valve accessories, motor shaft, thermostats, scales, electrical accessories, copper, iron, steel, aluminum, etc. precision metal parts and accessories, with imported automatic lathes and Centerless Grinder, precision CNC computer lathes, screw head, forging equipment, punch, and so on.

本公司实力雄厚，是专业生产电子、电器产品上用的雾化器铜头，充气阀、燃气阀配件、电机轴，温控器、衡器、电器配件等，铜、铁、钢、铝等精密五金零配件等、拥有进口自动车床和无心磨床，精密CNC电脑车床，螺丝打头，锻压设备、冲床，等设备。

It has a workshop of 1000 square meters, and more than 100 staff work there. Nowadays, it have six vertical injection molding machines、8 high-precision pressure greeters terminals and 3 high-precision wiring testers.

厂房面积1000平方米，现有员工100余人，拥有先进的立式注塑成型机6台，高精度端子压接机8台，高精密电线测试机3台。

Rotary servo motor + ball screw up to 2 ~ 5μm, and the requirements of CNC-servo motors - even without coupling gap - thrust bearing - Cooling System - high-precision rolling guide - Nut Block - table closed-loop system as a whole transmission part to lighter, higher precision grating.

旋转伺服电机+滚珠丝杠最高达到2~5μm，且要求CNC-伺服电机-无隙连轴器-止推轴承-冷却系统-高精度滚动导轨-螺母座-工作台闭环整个系统的传动部分要轻量化，光栅精度要高。

In order to got the more accurate Guide Star(with star flag 0), the stars with magnitude brighter than 6.5 of J1991.25 Hipparcos catalog were chosen, after the rigorous epoch transformation, the J2000.0 Hipparcos sub-catalog was got, with the help of the information of Tycho-2 star catalog and SAO star catalog at the same epoch, the threshold of position precision is introduced, which can meet the precision of attitude determination in arc-second level.

在相同的历元J2000.0时刻，选取J2000.0 Hipparcos星表和Tycho-2星表中位置精度阈值在1角秒内的共星作为导航星，选取除导航星外的J2000.0 Hipparcos星表和SAO星表中位置精度阈值在1角秒内的共星作为辅助导航星，通过模拟星图识别失败个例分析提取冗余导航星，使其排除在导航星之外。

Ningbo World-metal stamping machinery is Taiwan's veteran peripheral manufacturers, professional manufacture and sale of peripheral automation punch line equipment, including air Tape feeder, high-speed roller Tape feeder, electronic control Tape feeder plane, terminal or feeder, NC Wheel Tape feeder, rack Correction of the machine, precision-corrected, microcomputer dead-detection, Die security detection devices, photoelectric Guarding hand, high-speed punch at NC computer speakers and precision, such as whole-Tape feeder.

宁波世庆五金机械是台湾老牌冲压周边厂家，专业制造与销售冲床周边自动化系列设备，包括空气送料机、高速滚轮送料机、平面电子控制送料机、端子收料机、NC滚轮送料机、料架兼矫正机、精密矫正机、微电脑下死点检出器、模具安全检出装置、光电护手、高速冲床隔音箱及NC电脑精密整平送料机等。

The main production equipment has CNC CNC lathe, precision automatic lathes, welding machines, digital milling machine, WEDM, drilling, screw heading machine, thread rolling machines, precision punch, such as more than 50 Units, equipment processing accuracy of 0.01 millimeters.

主要生产设备有CNC数控车床、精密自动车床、氩弧焊机、数显铣床、线切割机床、钻床、螺钉打头机、搓丝机、精密冲床等50余台，设备加工精度达到0.01毫米。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。