查询词典 insulation work

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。

According to赵霄long introduction, the relevant departments in the country enacted in 2004, code-named JGJ144 the "exterior insulation engineering and technical point of order."

据赵霄长介绍，在2004年颁布的国家，代号为JGJ144的"外墙外保温工程和技术规程的相关部门。"

F the test wall apparatus shall not be filled with insulation.

测试墙面温度的器具里不能充满绝缘材料。

The presence of space charges has an important effect on the performance of solid dielectrics.Sometimes it is favorable in the case of electrets and bioelectrets; sometimes it is disastrous in thecase of electrical insulation.

固体介质中的空间电荷对其性能有重要的影响，它有有利的一面，比如在驻极体和生物电介质中，也有不利的一面，比如在电气绝缘领域。

Meantime, the proposed one is applied to online detect the insulation of feeder line cable in metro substations and has already obtained good results.

将该方法应用于地铁牵引变电站馈线电缆绝缘性能的在线检测中，取得良好的效果。

The first polysilicon film is formed on the semiconductor substrate with the gate insulation film between them.

一种含有非易失性半导体存储装置的半导体装置的制造方法，提高其可靠性及成品率。

Tube, with fire prevention, heat insulation, non-toxic, noise , acid-resistant, compression, light weight, easy to install features such as, the company strictly implement the relevant national standards, provide customers with high-quality products and services, products have to meet international standards retardant B1 pole, fire performance.

等工业用管，具有防火、保温、绝热、无毒、隔音、耐酸、抗压、质轻、安装便易等特点，公司严格执行国家相关标准，为客户提供高质量的产品和服务，产品已达到国际难燃B1极标准，防火性能优异。

Our company is a professional foreign trade companies, the main export products for the firebrick and insulation materials, we have long-term, stable customers, I am very glad to have the opportunity to sincerely cooperate with you!

我公司是一家专业外贸公司，主要出口产品为耐火砖和保温材料，我们有长期稳定的客户，很高兴能有机会与大家真诚合作！

It determined replacing material for the cylinder and the heat-insulation hanging piece would be replaced by the home-made firebrick s.

通过对烧蚀损坏的低热值燃气轮机单筒燃烧室检查、分析，找出了损坏原因，确定筒体替代材料，开发国产耐火砖替代隔热挂片，对燃烧室进行了修复，积累了检修经验和技术数据。

On thermal Technology Co., Ltd., founded in 1999, professional manufacture of ceramic fiber products, high-temperature fiber flexible seals, thermal insulation firebrick, refractory clay, kiln furniture, unshaped refractory and dense refractory material, while providing the following professional hot engineering technology and construction services.

上海伊索热能技术有限公司，成立于1999年，专业制造陶瓷纤维制品、高温纤维柔性密封装置、隔热耐火砖、耐火胶泥、窑具、不定型耐火材料和致密耐火材料，同时提供专业的隔热工程技术和施工服务。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。