查询词典 bobbin cleaner

Based on a series of signal process and noise source identification techniques, especially the major noise source identification methods, such as expurgation method, sound intensity analysis, spectrum analysis vibro-acoustic correlation analysis and so on, the pass-by noise control of SC7080A and SC6360B are studied in detail. By the roadway and dais experiments, the major noise and radiating parts are identified and some economical controlling methods are made. For the SC7080A, to control the emissing noise from the intake and shell vibration of air cleaner, a intake muffler is installed between the air cleaner and intake valve. Based on the theory of Helmholtz resonator, One three-parallel-connected resonant silencer is designed and trial-manufactured. For the SC6360B, the attenuation performance of exhaust muffler in high frequency region is improved. To reduce the vibration noise of shell part, the structure of oil sump tank, exhaust manifold shield and exhaust manifold shield are analyzed and improved. At the same time, some measures, such as sound absorption, sound insulation, are taken to reduce the noise of engine surface emissivity and a sound shield is designed.

本文首先综述了目前国内外汽车加速噪声控制的现状、主要方法和技术措施，在此基础上，结合SC7080A和SC6350B汽车的车外加速噪声水平及现状，综合运用分别运行法、声强法、频谱分析法、声振相干函数法等现代噪声源识别方法，对SC7080A和SC6360B汽车进行了准确详细的车外加速噪声源识别并提出了经济可行的控制方案，针对SC7080A，主要在空气滤清器和进气阀门之间的进气管道上加装进气消声器，抑制空气滤清器壳体表面和进气口两处的噪声辐射，根据Helmholtz共振腔原理设计了三腔并联旁支型共振消声器，并进行了工程化设计和试制；针对SC6360B，主要改善了排气消声器在高频段的消声性能，对罩壳类零件进行了结构改进，降低了其表面噪声的辐射，并对发动机舱进行了吸声、隔声处理，设计了发动机隔声罩。

Through the indagation to the all plants of the company, the workship of alcohol making is regarded as the key point for audit by weighted ranking method. According to the normal of cleaner production audit, the paper labors the working process by cleaner production audit.

根据企业现场调查的结果，采用加权总和排序法确定了酒精生产车间作为审计的重点，依照清洁生产审计要求的审计步骤，对试点企业的生产过程进行了详细的清洁生产审计。

C. Worker's 2 cross the threshold: When enters the first gate,infrared computer recognition system initiation, if you see severalflies and the mosquito in the side time please do not have to worry,the top of the head 4 vacuums cleaner and the right-hand man two sidesvacuums cleaner can deliver these repugnant harmful insect otherworld.

C。工人的2个出入门：进入第一个门时，红外线电脑识别系统启动，如果您看见几只苍蝇和蚊子在身边时请不要担心，头顶的4个吸尘器和左右手两侧的吸尘器会把这些令人讨厌的害虫送到另外一个世界。

The Acting British Shell company vehicle maintenance supplies, including Blue Coral vehicle additives Series: engine repair of strong and efficient restoration of power, the engine efficient protection of God, efficient engines cleaner, engine Zhilou agent, efficient EFI cleaning agent Enhance the improvement of diesel combustion chamber cleaner, powerful cooling system of fast-jie, fast and efficient cooling system Zhilou; beauty and magic car series: the devil-Brazil's top palm Extreme paste wax, the devil rain Deep Need for paint wax, the devil fog Fighting classic wax, Cherry washing shampoo, Combo of leather care, anti-UV care of the interior, engine-free wipe clean agent.

本公司主要代理英国壳牌汽车养护用品，包括蓝珊瑚车用添加剂系列：引擎强力修复剂、高效动力修复剂、引擎高效保护神、引擎高效清洁剂、引擎止漏剂、高效电喷清洁剂、柴油增强改进剂、燃烧室清洁剂、冷却系统强力快洁剂、冷却系统快速高效止漏剂；黑魔力汽车美容系列：魔云顶级巴西棕榈至尊膏蜡、魔雨深层护漆极品蜡、魔雾无痕经典蜡、樱桃洗车香波、二合一皮革护理剂、抗UV内饰护理剂、免擦拭引擎光洁剂。

This paper mainly inquired into the characteristics of the ferment bed pig - raising technique and its applying in realizing the cleaner production of pig farms. ferment bed ; cleaner production ; pig - raising technique ; waste treatment

但由于发酵床技术主要靠微生物降解猪场废物，而目前所使用的菌种分解效率不是很高，使得单位面积饲养的猪数量有限，另外由于猪舍是半开放式的，受外界的环境变化的影响，如何使菌种在不同的气候条件下都能发挥较高的效率也是一个需要解

Like other scam-ware, System Cleaner and Hardware Doctor will try to scare you into buying System Cleaner and Hardware Doctor.

像其他欺诈软件，系统的洁净和硬件的医生将试图吓唬你购买系统清洁和硬件医生。

Exhibit in the Beijing car this year on, a cleaner girl was patted the photograph is put to the net, the netizen thinks, with the scratch one's head of car model the photograph that handle appearance is compared,"Cleaner MM " simple and unadorned beauty is more dazzing.

在今年的北京车展上，一位清洁工女孩被人拍了照片并放到网上，网友认为，与车模的搔首弄姿相比，"清洁工MM"朴实无华的漂亮更为夺目。

If you have used a vacuum cleaner, you will find some disadvantages of a vacuum cleaner.

如果你们使用过吸尘器，你就会发现它的一些缺点。

The customer may also rationalize that with a new vacuum cleaner, cleaning will be easier and the new cleaner will do a better job in less time.

顾客也许也合理化那与新的吸尘器，清洗将是更加容易，并且新的擦净剂在较少时间内将做一个更好的工作。

Watch Glass Cleaner is a ready-to-use glass cleaner for use on glass window, mirrors, plastic and glossy painted surfaces.

将玻璃清洁剂加在喷枪内，喷须要清洁之表面后，用乾毛巾或抹手纸清抹，如在大型玻璃表面，用洁净之水桶加入清水和适量之玻璃清洁剂，用毛头涂在玻璃表面，再用水挖将玻璃表面清挖乾净。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。