搜索优化
English
搜索
Copilot
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
房地产
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
过去 30 天
时间不限
过去 1 小时
过去 24 小时
过去 7 天
按相关度排序
按时间排序
搜狐
29 天
PFOS和PFOA禁用背景下,碳八三防整理剂替代方案研究概览(上)
具体替代取向有以下几点: 1、非PFOS的全氟烷基氟碳化合物 2001年美国EPA提出禁止PFOS使用后, 3M公司于2002年声明不生产PFOS相关产品, 同时研发全氟丁 基 磺 酸 (PFBS, Perfluorobutane Sulfonate)。PFBS的氟碳链短, 无明显持久性及生物积累性, 短时间随人体新陈代谢排出体外 ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Tapped for health secretary
Florida sues FEMA officials
OH transgender bathroom bill
Named grand marshal
FBI offering up to $25K
Vonn ending her retirement
Bohannan requests recount
E. coli cases climb to 104
To replace Kotb on 'Today'
Ben & Jerry's sues Unilever
To close hundreds of stores
Ban on executives upheld
Tropical Storm Sara forms
DOJ report on Fulton jail
Teen guilty of swatting calls
House GOP conference chair
Faces up to $165M penalty
Largest coral ever recorded
Weekly jobless claims fall
Lawyers seek to quit case
China hacked telecom firms
Remains ID'd after 82 years
Briefly detained at airport
Bed rails recalled
FBI raids Coplan's home
Israeli airstrikes hit Syria
Judge blocks name change
Seeks pause in docs appeal
Notre Dame set to reopen
The Onion buys Infowars
EU fines Meta
Global increase in diabetes
反馈