低技术的

With the rapid development of information technology and network technology, the market competition in the field of manufacturing is aggravating constantly.

随着信息技术和网络技术的飞速发展，世界制造业市场竞争不断加剧，以最短的时间开发和生产出高质量、低成本的产品成为每个企业所追求的目标。

At present, the ordinary and low quality freshwater cultured pearl products could not meet the fashional needs of the most consumers. However, with the further development of the cultivation techniques and process techniques, many new varieties of pearl appear in the pearl market.

目前，普通、低品质的淡水珍珠产品已无法满足大部分消费者的时尚需求，但随着珍珠养殖技术与加工技术的进一步发展，市场上出现了许多新的珍珠品种。

In our country, the development of road transportation is mainly simple scalar expansion of low level, The growth of factor productivity contribute small to the economy increase, and the mainly character is: The development of road passenger transport and road freight is mainly the expansion of quantitatively and scalely;the development of road transportation depends on the infrastructure's high devote and market demand increase; technical is draggle and energy consumption is high, the Structural upgrade of industry is slow.

在我国，道路运输业的增长以低水平的简单数量扩张为主，要素生产率提高对增长的贡献度较小，具体表现为：道路客货运输服务的发展以数量和规模的扩大为主；道路运输业的发展仍然依赖于基础设施建设的高投入和市场需求的扩大；技术水平较低，能耗高，产业结构升级步伐缓慢。

Combining with the production control of low-alloy steel with niobium , the main reasons of surface transverse crack of low-alloy steel slab with niobium were put forward.

介绍了铌元素的作用和行为及在常见钢种中的作用，结合含铌低合金钢的生产控制，分析出造成含铌低合金钢连铸坯表面产生横裂纹的主要原因，并采取相应的技术措施，提高铸坯表面质量。

Anhydrous magnesium chloride may be prepared from materials containing magnesium chloride such as magnesium chloride hydrate, carnallite or bittern by different dehydrating methods of organic solvent distillation or molecular sieve absorption, gas protective heating, discomposing the MgCl2-NH3 complex that can be composed from high boiling-point polar-solvent system...

无水氯化镁制备技术经历几十年不断的探索，取得了一些进步，但彻底改变耗能高、污染腐蚀严重、流程复杂的工艺过程，开发流程简单、低污染腐蚀、低成本的绿色工艺仍然需要更深入的研究。

Randell Mills is the pioneer of technology based on energy released as the electrons of hydrogen atoms are induced by a catalyst to transition to lower-energy levels (ie drop to lower base orbits around each atom's nucleus) corresponding to fractional quantum numbers.

米尔斯博士兰德尔是基于技术的先驱，作为电子的氢原子释放的能量是由催化剂作用过渡到低能量水平（即降至大约每个原子的原子核基准较低轨道）相应的分数量子数。

to overcome some disadvantages of low precision,slow dynamic response,unconvenience parameter adjust existing in high-power ultrasonic power supply,it applies intelligent control composed of 8089 microcontroller is proposed.the article introduces the modulation principle of spwm,the composition of high-power ultrasonic power system applying the single chip computer to realize the soft of phase lock loop,the mechanism of work and the software thought.it realizes the low loss,high power factor and the whole performance of the circuit is developed.

摘 要：针对目前大功率超声波电源采用模拟控制电路存在精度低、动态响应慢、参数整定不方便等缺点，采用单片机8089组成智能控制的超声波电源系统。提出了基于spwm技术的双闭环控制策略和应用单片机实现软锁相的工作原理和软件思想，使整个超声波电源实现了低损耗、高功率因数，优化了电路的整体性能。

The Wavenis wireless technology developed and industrialized by Coronis provides an unequaled combination of ultra low power, long range, high reliability, and low cost.

Coronis 公司研制并成功工业化的Wavenis 技术具有无与伦比的优势组合：超低功耗，无线波长，可靠性能强，以及成本低廉，这使该技术的性价比极高。

In the basis of importing, studying and taking advantages of home and abroad advanced technology, our company invested and made great efforts to develop the new blower — low-noise cabinet centrifugal fire blower with precise techniques and strict quality control. The blower is efficient, low-noise, powerful, heat resistance, and easy to install, operate, maintain, and with fine outline design.

低噪声柜式离心消防风机是我公司在引进、消化和吸收国内外先进技术的基础上，反复推敲，精心设计，以精湛的加工工艺和严格的质量控制生产出来的新型风机，该风机具有效率高、噪声低、风量足、耐高温、安装简捷、使用维护方便和外形美观等特点。

Chang Daoci the aerosol technology hover height is low, therefore to the line smoothness, the roadbed submersion quantity and the rail switch structure aspect request compares the superconductivity technology to be higher.

2常导磁悬浮技术的悬浮高度较低，因此对线路的平整度、路基下沉量及道岔结构方面的要求较超导技术更高。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。