亚洲人成网站18禁止中文字幕,国产毛片视频在线看,韩国18禁无码免费网站,国产一级无码视频,偷拍精品视频一区二区三区,国产亚洲成年网址在线观看,国产一区av在线

--- SEARCH ---
WEATHER
CHINA
INTERNATIONAL
BUSINESS
CULTURE
GOVERNMENT
SCI-TECH
ENVIRONMENT
LIFE
PEOPLE
TRAVEL
WEEKLY REVIEW
Learning Chinese
Learn to Cook Chinese Dishes
Exchange Rates


Hot Links
China Development Gateway
Chinese Embassies


Scientists Tackle Noise from Bus Braking
Scientists of the Automobile Institute of the Wuhan University of Science and Technology and Yuanfeng Auto Parts Co. developed a patented air-pressure disk-type braking device that will help tackle the noises arising from the braking of buses.

The devise has been installed at the autos produced by Dongfeng, Jinlong and Jianghuai and proves that the noise at the braking is zero. Under normal conditions, such brakes will not ask for replacement within 80,000 km of mileage, greatly cut the labor intensity of the driver and the costs in operations.

At present, most of China's buses use the drum-type brakes which produce noises when deformed. According to monitoring, noises by such brakes may reach 90 decibel to 110 decibel and generally remain at 70 decibel, constituting serious noise pollution. Buses in developed nations had been installed with such air-pressure disk-type brakes in the mid-1990s.

The State Environmental Protection Administration is working out standards for the limits of auto braking noise values and will make it as an important part of the annual auto check next year.

(www.cenews.com.cn November 11, 2002)

Noise Pollution Complainants Get Awards
City to Cut Noise on 4th Ring
Beijing to Cut Noise on 4th Ring Road
Noise Rule Makes a Racket
Urban Noise Pollution Ruled out
Expressway Developers Urged to Pay for Noise Pollution
Beijing Plans Huge Investment to Control Traffic Noise
Yinchuan, China's Quietest City
Print This Page
|
Email This Page
About Us SiteMap Feedback
Copyright © China Internet Information Center. All Rights Reserved
E-mail: webmaster@china.org.cn Tel: 86-10-68326688
    1. <ul id="556nl"><kbd id="556nl"><form id="556nl"></form></kbd></ul>
      <thead id="556nl"></thead>

      1. <em id="556nl"><tt id="556nl"></tt></em>
        <ul id="556nl"><kbd id="556nl"><form id="556nl"></form></kbd></ul>

        <ul id="556nl"><small id="556nl"></small></ul>
        1. <thead id="556nl"></thead>

          亚洲人成网站18禁止中文字幕,国产毛片视频在线看,韩国18禁无码免费网站,国产一级无码视频,偷拍精品视频一区二区三区,国产亚洲成年网址在线观看,国产一区av在线 人妻无码久久影视 日韩久久久久久久久久久久 精品国产香蕉伊思人在线 无码国产手机在线a√片无灬 91在线视频无码