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ring for
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  环的
     Research on the numerical simulation and the experimentation of the punching-extrusion process with an outer ring for Mn18Cr18N retaining ring
     Mn18Cr18N钢护环的包套冲挤成形数值模拟与试验研究
短句来源
     (4) Ring is a strongly fPF ring, for x∈R, a∈ann_R (x) if and only if f(a)∈ann_R(x), then R is a PF ring. We also provide an example of fPF ring which is not a PF ring.
     (4)设R是强fPF—环,且对于x∈R,a∈ann_R(x)当且仅当f(a)∈ann_R(x)对某f∈H(R),则R是PF—环,另外,我们还给出一个例子说明fPF—环是PF—环的严格推广
短句来源
     R&D of Steel-belted Compound Oil Control Ring for 139 FM 4-stroke Engine
     139FM四冲程发动机用钢带组合油环的研制
短句来源
     DEVELOPMENT OF STEEL-PLASTIC ELASTIC THREAD PROTECTIVE RING FOR OIL-FIELD PIPE
     油井管螺纹“钢-塑”弹性保护环的研制
短句来源
     α-unity Element and a-divison Ring for the Γ-rings
     Γ—环的α-单位元及α-除环
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  “ring for”译为未确定词的双语例句
     (2) If I is a clean general ring,then I[x]/x~(n+1) is a clean general ring for all n≥1.
     2)若I是一般clean环,则对任意n≥1,均有I[x]/是一般clean环.
短句来源
     Arc welding repairing of roll ring for φ4.5×110 m sinter kiln
     φ4.5×110m熟料窑滚圈的手工电弧焊修复
短句来源
     Synthesis of an Optically Active Intermediate of A ring for 19 Nor 1α,25 Dihydroxyvitamin D 3
     光学活性的19-失碳-1α,25-二羟基维生素D_3 A环关键中间体的合成
短句来源
     The lonitrocarburizing Technology of CylinderLiner and Piston Ring for Marine DieselEngine Type _9~6ESD(Z)43/32
     _9~6ESD(Z)43/82型船用柴油机气缸套和活塞环的离子软氮化工艺
短句来源
     The expandeduncertainty of measuring the standard ring for 50mm diameter is 0.15μm .
     装置对Φ50mm标准环规直径测量的不确定度达到了0.15μm。
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  相似匹配句对
     I——RING WITH D. C. C
     满足降链条件的Ⅰ—环
短句来源
     On Finite Ring
     关于有限环
短句来源
     Bohai Ring Platform
     环渤海七省市共建技术转移大平台
短句来源
     FUZZY UNIFORM RING
     模糊一致环
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  ring for
Non-existence of first integrals in a Laurent polynomial ring for general semi-quasihomogeneous systems
      
A calibration test is performed by using a circular disk, this method is applied to a circular ring for measuring the stress gradients.
      
This property has been verified by measurements on a chip that demonstrates a self-timed ring for the example function of floating-point division.
      
The Wiberg indices for the bonds in the pyrane ring for various excited states define the photochemically active state involved in the photochromism.
      
1H and13C NMR was used to estimate the dihedral angles between the planes of the vinyl group and the hetero ring for 1-vinylpyridones and quinolones.
      
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The subject is dealt with in the following four parts:1. An introduction is made of the two essential types of conical ring for cotton ring spinning, ZM-6 ring and SH ring, the geometrical adaptation of the traveller to the ring and their technological effects. The current maximum linear speed of the traveller is about 45 m/sec.2. The wearing positions of the travellers were located. From a simple analysis of the moments acting on the traveller, the anti-wedging property of traveller...

The subject is dealt with in the following four parts:1. An introduction is made of the two essential types of conical ring for cotton ring spinning, ZM-6 ring and SH ring, the geometrical adaptation of the traveller to the ring and their technological effects. The current maximum linear speed of the traveller is about 45 m/sec.2. The wearing positions of the travellers were located. From a simple analysis of the moments acting on the traveller, the anti-wedging property of traveller is discussed, the results of which show that the traveller on the conical ring has got better antiwedging properties than the ordinary anti-wedge rings.3. Spinning tension for the travellers at spindle speeds between 15000鈥?9000 r.p.m was measured. The results show that the variation of yarn tension for the conical ring and traveller is lower than for ordinary anti-wedge rings. Tension peaks are low, especially towords the end of doffing. As a result, the breakage in ring spinning is reduced.4. Traveller heating and wear are discussed. Because the contact surface between the conical ring and the traveller has been increased greatly, it gives good heat dissipation. The conical ring particularly suitable for spinning synthetics and blends of cotton and synthetics is considered. Working life of the conical ring and traveller for fine yam counts has been found prolonged.Finally, the faults of the conical ring are pointed out in the report.

本文包含以下四部分内容: 1、介绍棉纺锥面钢领的两种主要形式——ZM-6型和SH型,钢领和钢丝圈的几何配合及工艺效果。目前钢丝圈最高线速度达45米/秒。 2.测量了钢丝圈的磨损位置,从简单的力矩分析,讨论了锥面钢领、钢丝圈的抗楔性能,结果表明了锥面钢领比平面抗楔钢领具备较好的抗楔性能。 3.测量了锭速在15000—19000转/分的纺纱张力,测量结果表明,锥面钢领、钢丝圈的纱条张力变异比平面抗楔钢领低,特别是大纱阶段,张力峰值低。所以降低了细纱断头率。 4.讨论了钢丝圈的发热和磨损。由于锥面钢领和钢丝圈较大地增加了接触面积和良好的散热性能,使得它们特别适用合成纤维纺纱和棉与合成纤维混纺。对于纺制细号纱,钢领和钢丝圈的寿命延长。最后指出了目前使用锥面钢领的优点和缺陷。

An automatic adiabatic calorimeter for heat capacity measurements of solids and liquids in the temperature range 80~370K has been constructed. In this apparatus the shield temperature control, the electrical energy input and the heating interval measurement are all carried out automatically. The automatic control permits one-man operation of the apparatus.The main body of the calorimeter consists of a sample container, double adiabatic shields, an upper ring for preheating lead wires and a vacum can.The...

An automatic adiabatic calorimeter for heat capacity measurements of solids and liquids in the temperature range 80~370K has been constructed. In this apparatus the shield temperature control, the electrical energy input and the heating interval measurement are all carried out automatically. The automatic control permits one-man operation of the apparatus.The main body of the calorimeter consists of a sample container, double adiabatic shields, an upper ring for preheating lead wires and a vacum can.The sample container is made of silver of 99.95% purity, 0.3mm thick, gold-plated and polished, and is provided with a central re-entrant well for setting a thermometer heater assembly. Eight silver radial fins of 0.2mm thick, silver-soldered to the well and to the inside wall of the container, provided good thermal contact of the sample with the container. The size of the main body of the confiner is 3.2cm in diameter and 6 cm long. The total weight of the container is about 50g and its effective capacity is ca. 40ml.The temperature of the container is measured with a standard platinum resistance thermometer and a high-precision Smith bridge. The thermometer, which is platinum encapsulated, 25Ω, 5mm in diameter and 50mm long, was made by Yunnan Instrument Manufactory of China and calibrated at the Chinese Institute for Metrology in accordance with the IPTS-68. The accuracy of the bridge is±0.005% and the temperature is measured to 0.0001K.The temperature difference between the container and the shield is detected by an eight junction copper-constantan thermocouple, the signal from which is fed into a DWT-702 type precise temperature controller for automatically adjusting the current in the shield heater so as to maintain the temperature of the shield as close as possible to that of the container. Experiments demonstrated that during the heat capacity measurements the temperature difference between the shield and the container could be kept within 0.001K. The electrical energy for heating the calorimeter is supplied by a source of power, stable to about 10 parts per million. The energy input is started and stopped automatioally by a digital electronic timer and the heating interval is measured and presented on a digital counter of the timer with an accuracy of 0.005%.The instruments used in the present measurements have been calibrated at the Chinese Institute for Metrology.The reliability of this apparatus is verified through the heat capacity measurements of α-Al_2O_3 and n-heptane which are recommended as the heat capacity standards. The purities of the α-Al_2O_3 and the n-heptane samples available in these measurements are 99.993% and 99.99%, respectively.The results obtained with the present: calorimeter are found to be in agreement with those of Furukawa et al. within±0.30%. The precision of heat capacity measurements is ±0.04% over the entire temperature range.

本文详细描述了用于80~370 K温区内精密测定固体和液体物质热容的自动绝热量热装置。其中热屏绝热控温和样品加热计时均实现了自动化,全部操作可由一人单独完成。通过测定国际量热学会议所推荐的两种标准物质α-Al_2O_3和正庚烷的热容,证实了装置的可靠性;在全部实验温区内本文结果与美国标准局数据符合在±0.30%以内,测试精密度为±0.04%。

The operating process adoptel for ionitrocarburizing the cylinder liner and piston ring for marine diesel engine Type 69ESD(z)43/82 and the method used in homogenizing and measuring of temperature are described in detail. The thickness of penetrant layer and surface of hardness of ionitrocarburized specimen and the elliptisity of cylinder liner bodies, and based on the later the deformation of cylinder liners is analysed, and the optimum parameters and operating scheme are determined.

本文详述了:ESD(Z)43/82型柴油机气缸套和活塞环的离子软氮化操作过程和采用的均温、测温方法.测定了离子软氮化试片的渗层厚度、表面硬度以及气缸套实物的椭圆度,并根据椭圆度对气缸套的变形作了分析,且确定了最佳的工艺参数和操作方案.

 
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