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: aaa毛片手机在线现看 | 国产色情A片国语露对白 | 毛片一级片 | 亚洲日本中文字幕天天更新 | 午夜影皖 | 久久久精品国产 | 日韩日韩日韩日韩 | 免费观看视频www | 久久6国产 | wwwav在线| 日本高清色视频在线观看免费 | 成人无码髙潮喷水A片 | 日本www视频在线观看 | 狠狠干奇米 | 91亚洲免费视频 | 天天爽天天操 | 小宝与康熙粤语 | 天天插天天狠天天透 | 奇米线在人线免费视频 | 亚洲一区二区三区免费在线观看 | 色婷婷激婷婷深爱五月小说 | 青草免费观看 | 99久久人妻无码精品系列性欧美 | 久久九九久精品国产 | 午夜性电影 | 精品网站999| 四虎在线观看一区二区 | 极品白嫩无套视频在线播放张悠雨 | 欧美综合区 | 婷婷视频网站 | 亚洲精品乱码 | 欧美精品一区二区精品久久 | 春色av| 日韩电影一区二区三区 | 91久久国产综合久久 | 日韩精品视频免费 | 狠狠狠狠狠狠狠狠狠狠 | 二区三区不卡不卡视频 | 波多野结衣hd在线播放 | 婷婷亚洲五月琪琪综合 | 成人不卡视频 |