中压

The MASS series ring switchgear is a new-model SF6-insulated medium-voltage ring switchgear developed by our company by taking advantage of advanced technologies from abroad.

MASS为10KV全绝缘、全密封、共箱式充气环网柜体，尺寸及功能和ABB公司SafeRing充气柜一致MASS系列环网开关柜是我公司吸收国外先进技术，而自行研发的SF6绝缘的新型中压环网柜。

The MV winding shall be provided with tappings that allow a regulation of the no-load voltage in the range + 5% and - 7.5%, by means of + 2 and - 3 steps of 2.5 % each.

中压线圈应带有分接头，允许空载电压有+ 5%至- 7.5%的适应范围，通过每级2.5%进行+ 2 、- 3调节。

The main applications are oil or gas transfer pipe; pipe for oil well bushing; transfer pipe for medium or low pressure water, gas, oil; pipe used in the structure of low and medium pressure boiler、engine boiler heat exchanger and condenser; pipe for construction、iron tower、frame structure、tubular pile、stanchion and other structures; pipe for mechanic、engine、automobile、apparatus and other mechanical accessories.

产品主要用途：石油天然气工业中输送油、气，水；油井套管；输送中、低压水、煤气，油；低压和中压锅炉及机车锅炉、换热器，冷凝器结构中；土木建筑、铁塔、网架、管桩、支柱及其它结构；机械、机车、汽车、器具，其它机械零件。

The new steam turbine will be safe and satisfy the peak load and daily start and stop operation.

研究提高汽轮机高中压缸级负荷的设计方法和准则。

For manufacture of low/medium/high and higher pressure boilers,water cooling panels,coal-saving devices,reheaters,superheaters and steam pipelines

用于低中压、高压及其以上压力锅炉的水冷壁、省煤器、再热器、过滤器及蒸气管道的制造。

The necessity of installing phase to phase fault protection on LV side of transformer is presented in this paper by analyzing the protection capability of phase to phase impedance protection on HV and MV sides of 500kV transformer against phase to phase fault on its LV side.

通过分析 50 0kV变压器高、中压侧相间阻抗保护对其低压侧相间故障的保护能力，阐述了变压器低压侧相间故障保护配置的必要性，并对保护的配置方式提出了建议。

The classification,main modes,scope of application,advantages and defects of city natural gas transmission and distribution network are compared,the principle for selecting gas transmission and distribution network is put forward,and the application of regulator box and PE pipe in a medium-pressure single stage system is discussed.

对城镇天然气输配管网分级、主要型式、适用范围、优缺点进行了比较，提出了燃气输配管网选择原则，探讨了调压柜和PE管在中压单级管网系统中的应用。

The compound was pyrolyzed in He atmosphere and analyzed by GC/MS.

通过甲醇提取，常压、中压和高压制备色谱分离，从津巴布韦烤烟烟叶中提取出3-氧代-α-紫罗兰醇-β-D-吡喃葡萄糖苷，得率0.0034%，并进行了质谱、紫外、红外和核磁共振结构鉴定，以及在氦气中的热裂解-GC/MS分析。

Our mill adopts medium speed and pressure, and repeated planishing principle, and its design is reasonable. The materials fall down by gravity. The materials are high strength and hardworking, while all the parts of rollers and ring will be worn evenly and capacity is compared evenly too.

STM立磨采用了中速中压反复碾压的原理，合理设计，物料自上而下自由落入，粉磨高硬度、难加工材料时磨辊磨环上、中、下部获得同等程度磨损，产量比较均匀。

Chris Richardson is an applications engineer in the Power Management Products group, Medium and High Voltage Division.

Chris Richardson：中压和高压的应用工程师。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。