作为项目负责人主持Japan Society for the Promotion of Science基金和分担多项日本财团合作研究基金,并作为项目组成员参与日本环境省环境研究综合推进基金等,并担任日本学术振兴会科研基金审查委员会候补委员,日本水环境学会会员,京都大学环境卫生工学研究会会员等。
郑州这次降雨大到什么地步,我来告诉你,这是全人类设立陆地气象观测站以来,测出的单小时最大降雨量,24小时降雨量达到了610.5毫米,最严重的时候,一个小时就达到了201.9毫米,强度如此之大,以至于中央气象台都要反复确认,是不是数据写错了,在如此极端天气情况下,再强悍的城市排水,都是扛不住的。
家里经常做家务的人,不难发现,厨房和厕所的下水道总是隔一段时间就会堵塞。堵塞的下水道,如果在表面或者上层,我们只需要用马桶搋子使劲通两下即可,但是,如果堵塞物停留在S弯道处,就算是用很大力气,还是难以处理掉深处的堵塞物,这个时候,不妨试试下面这几个方法。
【摘要】Total and per capita protein consumption rates in US diets, whether from plant or animal sources, rank among the highest in the world. When protein consumption outpaces physiologic protein demands, excess amino acids are degraded in the human body and nitrogen is excreted and released to the environment, mainly in the form of urea. Such excess reactive N can enter downstream environments, thereby impairing human and ecosystem health as well as contributing to economic losses. We show that matching protein consumption with physiologic requirements would reduce US hydrologic N losses to aquatic ecosystems by 12% and overall N losses to ecosystems by 4%. Were US citizens to consume protein at recommended rates, projected N excretion rates in 2055 would be 27% less than they are today, despite population growth. Optimizing US protein consumption to levels that meet human health standards has environmental benefits on par with improving wastewater treatment using existing technology, while also generating impactful economic benefits.
2012年7月24日消息(具体拍摄时间不详),美国纽约,城市探险者在纽约市下水道中探险。 图片来源:视觉中国2009年8月5日消息,工人在伦敦地下下水道中清污。 图片来源:视觉中国2009年6月2日,俄罗斯圣彼得堡,当地举行街区障碍竞速比赛。
在国外,为防范城市内涝,城市排水标准普遍比国内高,伦敦和巴黎的下水道系统,都已经有150多年的历史,却仍然保持着强大的排涝功能,巴黎的排水系统甚至成了参观景点,而建成于2006年的东京地下排水系统,更堪称牢固、先进,护卫着东京免遭内涝灾害。
V-T/V-I If you drain a liquid from a place or object, you remove the liquid by causing it to flow somewhere else. If a liquid drains somewhere, it flows there. 使流走;转载《有道词典》,如有侵权请通知删除。
接近尾声:即将结束。come to a close come to a conclusion。来自古英语 sumor,夏季,来自 Proto-Germanicsumur,夏季,来自 PIEsem,夏季,可能衍生自 PIE*semi,一半,半个。