The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
chun ri xing che fang chun kun
Author(s): 
Pages: 30
Year: Issue:  2
Journal: Modern Agricultural Machinery

Keyword:  GetLinkList(KeywordFilter('驾驶员:4846身体疲乏:3564味觉刺激:3443人体体表:3275安全行车:3009风油精:2736大脑供血:2643口香糖:2552感官刺激:2474行车安全:2246')'kw''CJFQ');
Abstract: <正> 冬去春来,春暖花开,大自然一派勃勃生机,而人们此时却往往感到困乏,爱打瞌睡。这是因为春天气温在一天天升高,人体体表的毛细血管由原来的收缩状态转为舒张,血流量增多,使大脑供血量相对不足,便出现了身体疲乏、昏昏欲睡的“春困”现象。 “春困”现象对驾驶员安全行车十分有害,特别是在长时间行车中,
Related Articles
No related articles found