低技术的

A large number of oil extractor are used in oil field,because of all these equipment's electromotor running efficien cy is very low,a great deal of electricity energy is wasted.

油田采油设备使用大量的游梁式抽油机，由于抽油机电机的运行效率很低，浪费了大量的电能，目前也采用了许多电机节能技术，但效果均不佳。

Because of long and thin structure characteristics, and sustain high frequency impact load under erosive medium, the drill rod's serve condition is most rigorous, and drill rod is one of the most easily damage tool in the percussion drilling rock system.

由于细长的结构特征和在腐蚀性介质中承受高频冲击载荷，使钎杆成为服役条件最苛刻、在冲击式凿岩系统中最容易损坏的机件，钎杆寿命低是制约凿岩爆破技术进步的关键问题。

Objective\ Preparing single-stranded probes in place of double- st randed probes to improve the hybridization efficiency and specificity of randomized terminal linker-dependent PCR.

目的 制备单链探针替代原有的双链探针，以解决RDPCR技术中存在的杂交效率较低及特异性较差的问题。

The numerical results can be transfered to plane and solid figures by one of the programs.(2) In this papes, a thorough new method-the iteration method of field is devised for three-dimensional dielectric objects.

本文用不同方法研究了多种实用天线以及用于天线的FSS的电磁散射及雷达截面，并进一步研究了实现低RCS隐身天线特性的技术途径。

The key technology is the guarantee of wood materials high filler content, products have to meet the lower production cost and higher performance.

其关键技术是保证木质物料较高的填充量，以达到制品有较低的生产成本和较高的使用性能。

On some occasions,two-step orthogonal toggle force-amplifying press based on pneumatic-mechanical compound transmission systems can be used instead of hydraulic transmission systems that cause environmental pollution.

而气压传动系统中的工作介质，是洁净的压缩空气，从这一点上来说，气压传动可以说是一种绿色化的传动技术。目前也有少量压力机采用气压传动，但是都是使用有杆活塞缸，这种气缸一般刚性比较差，且空间利用率低。

This paper describes tire test module's design and implementation of the direct-type Tire Pressure Monitoring System, with Infineon\s SP12 temperature and pressure sensors, Microchip's low-power microcontrollers PIC microcontroller, Maxim\s MAX1479 RF transmitter chip as the core of the tire test module, specifically the optimized circuit connection diagram is given in this paper, and a composite tire ID positioning method is proposed.

作者单位：哈尔滨理工大学，测控技术与仪器黑龙江省高校重点实验室论文摘要：本文针对直接式汽车轮胎压力监测系统，以Infineon公司的SP12温度压力传感器，Microchip低功耗微控制器PIC系列单片机，Maxim的MAX1479射频发射芯片为核心对胎内检测模块进行了设计和实现，并具体给出优化了的电路连接框图。

At present,For the development of "new energy" field,The company developed a series of related processing equipment,which Multi-Wire Cutting machine、Single-Wire Cutting machine、Saw cutting machine and other products,Relevant technical indicators have reached international advanced level of international processing,and has a higher cost.

目前，为配合我国发展&新能源&、&低碳排放&等领域的发展趋势，公司研制开发了一系列相关配套加工设备，主要有：多线切割机、多刀切割机、锯床切割机等产品，相关技术指标已达到国际先进国家的加工水平，且具有较高的性价比。

This requires outstanding technology, innovative and highest quality products, low cost, and high reliability of supply.

这需要优秀的技术，创新和最高质量的产品，低成本，高可靠的电力供应。

Use of static frequency converters for reversible diesel generator start is away to substantially increase efficiency and enhance applicability range of electric engine starting, because the technology in question eliminates a need for electric starter, and is less demanding to characteristics of autonomous power supply.

使用静止式变频器起动可逆式柴油发电机组是一种可大大提高发电机起动效率并扩大其应用范围的方法，因为这种技术消除了对起动电动机的需求，而且对自行供电特性的要求也较低。

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％。