查询词典 characteristic

In this paper Ⅰ successfully applied these methods to fault diagnosis, and presenting some new innovative machinery fault diagnosis method; First Ⅰ present a new gear wornout fault diagnosis method, this method use the vibration signal's time-frequency attribute and instantaneous phase undulation to accurately detect gear's fault, and by comparing with the traditional frequency domain analysis method, this method reveals that many nonlinear and nonstationary characteristic exist in gear's vibration, this tell us that if we use frequency domain analysis method without pay attention to the signal's characteristic, we could get wrong diagnostic result; Then Ⅰ present a new bearing fault diagnosis method, this method use ATVFD and Hilbert transform to do envelop demodulation,Ⅰ analyze the envelop with time-frequency method and find out that this method is more accurate then traditional method.Ⅰ also explain that the modulation of the fault to the carrier wave may also be non-stationary and nonlinear; Finally Ⅰ present a cylinder pressure measurement method of diesel engine by means of vibration, cylinder pressure is an important parameter of diesel engine fault diagnosis, the pressure measuring is simplified a lot by this method,Ⅰ also use the ATVFD and time-frequency analysis to realize it.

本文中将上述理论方法成功地应用到故障诊断中去，提出了几点创新性的诊断方法；提出了一种齿轮磨损故障诊断的新方法，该方法利用振动信号能量的时频域分布特征与瞬时相位波动特征可以进行精确的齿轮故障诊断，并通过与传统的频域诊断方法的比较，揭示出齿轮振动中存在的明显的非线性与非平稳特征，说明了不加选择地利用频域分析方法进行齿轮故障诊断很可能会得到错误的诊断结果；提出了一种轴承故障诊断的新方法，该方法利用ATVFD分解与Hilbert变换进行包络解调，并对解调得到的包络信号进行时频域分析，可以实现更加准确轴承故障诊断，说明了故障对载波信号的调制往往也是非平稳与非线性的；提出了一种利用振动信号进行柴油机汽缸内压力检测的新方法，柴油机汽缸压力的变化是柴油机故障诊断的重要参数，利用振动方法可大大简化汽缸压力的检测过程，该方法也是综合利用ATVFD分解与时频域分析方法实现的。

This paper tested the monocrystal silicon solar cell using the flash solar cell tester in different temperature and illumination intensity conditions, and analyzed its temperature characteristic and illumination intensity characteristic to optimize its application.

利用闪光式电池测试仪在不同温度和光强条件对单晶硅太阳电池进行了测试。

It's an experimental creation period from "Boatman's Elegy" to "Sirius" during which the performance of poetry's perception and the knowing are not mature/Under the influence of the west modernism art, his poetry has been experienced from the new moon romantic to the modernism. It's his mature period from "Lotus's Association" to"Separates the Water Goddess of Mercy". During this time his poetry's intellectuality and sensibility tends to be mature. Through the reconsidering of the westernization, the poet starts to inaugurate a new sky, and the poetry displays a bright neoclassic principle characteristic, then penetrates into the traditional nationality culture;and the "Bestows on from Cercis chinensis" is the deepened time until now which the poet displays for all kinds of practical styles, which includes multiplex characteristic.In his poetry, the intellectuality blends with sensibility, the sensation combined with logos.

从《舟子的悲歌》到《天狼星》是诗人创作的实验期，这一时期诗歌的感性和知性的表现还不成熟，其间由于受西方现代主义艺术的影响，其诗歌经历了从新月浪漫派到现代主义的变化；从《莲的联想》到《隔水观音》是诗人创作的成熟期，这一时期诗歌的感性和知性表现趋于成熟，诗人通过对西化的反思开始&浪子回头&，诗歌表现出鲜明的新古典主义特征，进而深入到民族传统文化之中；而自《紫荆赋》至今是诗人创作的深化期，表现为兼容并蓄的写实风格，并具有多元取向的特征。

The NOx release characteristic of the single coal and blended coals during combustion is studied with tube furnace and one-dimension combustion experiment system, and the coal characteristic and combustion condition which have influence on the NOx emission in the process of pulverized-coal combustion are studied in this paper.

燃烧温度和燃烧区域的气氛对于NOx的生成有很大的影响。保证煤粉稳定燃烧时的最低的O2浓度就是煤粉低NOx燃烧的最佳O2浓度。

Adopt an automation to control the labour intensity being able to improve the product efficacy and lighten a worker not only, and have very good economic returns and social benefits on electroplating production line, wielding PLC is that the automation controls , PLC has reliability height can come true , adaptability has communication function , the modularized characteristic of structure broadly on electroplating production line,therefore how to use good PLC to have become the key that the electroplating production line automation controls , use PLC to add up with frequency transformer carrying out autocontrol on electroplating automation production line bridge crane, Having the structure simplicity , the programming going to the lavatory , handling nimbly , using safety , job stability , strong characteristic of reliable and anti-interference ability of function, is one kind of effective autocontrol way , is that electroplating produces the direction realizing high-effect .

在电镀生产线上采用自动化控制不但可以提高产品生产效率和减轻工人的劳动强度，而且有着非常好的经济效益和社会效益，电镀生产线上运用PLC则可以实现自动化控制，PLC具有可靠性高，适应性广，具有通信功能，结构模块化的特点，因此如何使用好PLC成了电镀生产线自动化控制的关键，用PLC辅以变频器对电镀自动生产线行车进行自动控制，具有结构简单、编程方便、操作灵活、使用安全、工作稳定、性能可靠和抗干扰能力强的特点，是一种很有效的自动控制方式，是电镀生产实现高效、低成本、高质量自动化生产的发展方向。

In short ,translation of sales contract, not only needing to have solid foreign language basics and knowing well the characteristic in english communicates, but also require that certain special field reaches the decree , law and regulation knowledge , to know the Characteristic of the problem very well , strive for accurate, and the norm with style.

总之，销售合同的翻译，不仅需要有扎实的外语功底及熟悉英语表情达意的特点，还需要一定的专业及法令，法规的知识，熟悉其问题特征，力求准确，与风格的规范性。

The characteristic property applying the matter absorption spectrum , thing optics characteristic property having studied crystal is purple under different condition and the purple ion that anionic surfactants twelve alkyls mahogany acid sodium forms association.

应用物质的吸收光谱特性，研究了不同的条件下结晶紫与阴离子表面活性剂十二烷基磺酸钠形成的紫色离子缔合物的光学特性。

300 pieces of idioplasm resources of the Tibetan edible cultivation spring naked barley is identified for characteristic of shape, agronomic characters, rust-resisting property and grain thick protein,β-grape polymerization sugar and Vitamin E and so on from the Tibetan different region, which are analysed result in, for one thing, multiplicity of Tibetan spring naked barley is quite rich for the variation of the awn, leaves and the grain color, and multiple property are highest; Secondly, it has some fine hereditary characters of early maturation, big spike, many grains, many arrises and the strong anti-rust quality; Thirdly, genetic potential which is used possibly is enormous for characteristic of dense spike, exiguous spike, naked grain , the hook awn, short stem, the anti-rust and so on ; Fourthly, thick protein,β-grape polymerization sugar and Vitamin E of grains are rather difference to environmental condition of the various areas.

从西藏各地征集的300余份食用栽培春青稞种质资源，从形态特征、农艺性状、抗锈性和籽粒粗蛋白、β-葡聚糖含量、维生素E等特征特性鉴定、评价。分析结果认为：（1）西藏春青稞多样性极为丰富，如芒、稃和籽粒颜色，具有变异最为丰富，多样性最高的特点；（2）具有早熟、大穗、多粒、棱型多，以及抗锈性强等和耐各种不良环境因素的优良遗传性状；（3）具有密穗、稀穗、裸粒、钩芒、矮生、抗锈等可利用基因潜力巨大等特色；（4）籽粒粗蛋白、β-葡聚糖、维生素E等成份因各地区环境条件不同差异较大。

The results show that the relationship betweentotal potential energy and time step exhibits periodic characteristic when sigma-3symmetric twist grain boundary model and sigma-3 tilt grain boundary model slide atOK. But for sigma-13 asymmetric tilt grain boundary, the relationship between totalpotential energy and time step exhibits damp surge characteristic.

结果发现，∑3对称扭转晶界模型与∑3对称倾侧晶界模型在0K滑动时，系统的势能与计算步数之间的关系曲线呈现周期性变化的规律，而∑13非对称倾侧晶界模型系统的势能与计算步数之间的关系却呈现阻尼振荡特征的变化规律。

In this paper,characteristic of excitation system of permanent magnet autocycle start motor is introduced,magnetic characteristic of the permanent magnet excitation system with different material is compared,and the main problems of manufacturing practice are concluded.

介绍了永磁式摩托车起动电机励磁系统的特点，比较了不同材质的永磁式励磁系统的磁性能，总结了其制造工艺的关键问题。

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％。