日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Environment

Finding new ways to get the measure of pollution

By Guo Ying, Quan Xiaoshu and Zhou Qiang | China Daily | Updated: 2019-05-16 09:17
Share
Share - WeChat
Zhou Zhen (sitting) checks data with staff members at Guangzhou Hexin Instrument Co in Guangdong province. [Photo/Xinhua]

One of the world's leading authorities in mass spectrometry is manufacturing equipment to assess dangerous emissions. Guo Ying, Quan Xiaoshu and Zhou Qiang report for Xinhua.

Zhou Zhen and his team are busy "observing the invisible" in a lab. When an air sample passes through their mass spectrometer, the instrument's screen displays an analysis of its PM 2.5 content, the fine particulate matter found in polluted air.

Zhou has focused on the research and use of mass spectrometers for more than 20 years.

The 50-year-old scientist, who is head of the Institute of Mass Spectrometry and Atmospheric Environment at Jinan University in Guangdong province, won this year's National May 1 Labor Medal for his contribution to the field.

The mass spectrometer, a high-end analytical instrument that identifies the chemical constitution of a substance, is widely used in fields such as environmental monitoring, petrochemicals and medicine.

"If a machine is a tool for mankind to transform the world, then mass spectrometers are our 'eyes' to understand the world," Zhou said.

1 2 3 4 Next   >>|
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 精品免费国产一区二区三区 | 成人黄色在线视频 | 很黄很色又爽很黄很色又爽 | 亚洲精品一区二区三区婷婷月色 | 欧美精| 99精品国产免费观看视频 | 国产欧美日韩在线不卡第一页 | 一级欧美视频 | 2021国产精品视频一区 | 亚洲综合18p | 欧美一级精品片在线看 | 久久国产一区二区 | 中文字幕av亚洲精品一部二部 | JLZZJLZZ亚洲乱熟在线播放 | 999国产一区二区三区四区 | 午夜精品一区二区三区在线观看 | 成人看片| 成人啪啪网站 | 日日干天天 | 小视频你懂得 | 国产一区二区三区久久久久久久久 | 亚洲日韩中文字幕一区 | 奇米色第四色 | 亚洲毛片视频 | 91精品国产91久久久久久吃药 | 亚洲高清资源 | 成年免费视频网站入口 | 魔法骑士在线观看免费完整版高清 | 欧美日韩在线观看免费 | 日韩视频www | 欧美性色生活片免费播放 | A片扒开双腿进入做视频 | 久久国产精品视频 | 久久观看午夜精品 | 一区二区免费看 | 2019国产精品 | 国产一区二区免费 | 日本高清乱理伦片中文字幕啊 | 午夜性电影 | 久久人人爽人人爽人人 | 欧美综合伊人久久 |