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雾霾主要集中在铜川南部等地 明日有望雨雪洗天

2019-05-21 21:20 来源:药都在线

  雾霾主要集中在铜川南部等地 明日有望雨雪洗天

  谁能想到,两年前这里周边还是一片原始森林,野兽出没,当地人根本不敢到这里活动。恢复高考,不仅恢复了知识的尊严,重新肯定知识的价值,也是撬动思想解放和改革开放的“实践杠杆”。

土卫六甚至拥有地表海洋,只不过其中装的不是水,而是液态甲烷。面对记者,看得出来,她有很多话想说,但她最终嗫嚅着,低头把球鞋擦了又擦。

  但这一方案仍处于论证过程中,其中包括是否涉及高峰时段变相涨价等。“感谢志愿者鼓励俺凭双手勤劳致富,去年年底我脱贫了。

  不少行人越线被喷后觉得好奇,对该“神器”围观拍照。建议综合考虑多方因素,自己的成绩是否是通过努力获得的,包括身体和心里素质等方面都应综合考察,再进行选择。

原本计划于5月10日出舱的实验“突然”要延长5天,对此,“月宫一号”总设计师刘红教授解释说,这是事先设计好的,意在观察志愿者相应的心理状态与反应。

  新华社北京6月7日电6月8日是第10个世界日和第11个全国海洋宣传日。

  郝先生向记者表示,根据协议书,由张先生提供采砂船。服务期满考核合格的,按规定符合相应条件的,可享受相应的学费补偿和助学贷款代偿政策。

  这些仪器需要应对刺骨的严寒、与地球上的水性质不同的液体、以及其它严苛的环境条件。

  ”中船重工武船集团总经理陈埥说。文章指出,不过,中国引进美国、法国、俄罗斯等国技术,并在人才培养方面倾注了很大力气。

  央广网大连5月26日消息(记者贾铁生通讯员周丹)5月25日上午,2018辽东湾水生生物增殖放流活动在葫芦岛兴城举办。

  “云轨”属于中小运力的轨道交通,搭载无人驾驶系统等多项高科技配置。

  不同之处在于,一个是文科生,一个是理科生。一块块管片从厂房生产线下来,浸泡在旁边的水池中,如同瓣瓣盛开的莲花。

  

  雾霾主要集中在铜川南部等地 明日有望雨雪洗天

 
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Text:AAAPrint
Society

Strictly regulate glass-based bridges

1
2019-05-21 11:06China Daily Editor: Feng Shuang ECNS App Download
A visitor poses for a photo on the glass bridge, in August. (Photo provided to chinadaily.com.cn) 受2015年至2016年厄尔尼诺事件中创纪录高温驱动,2016年发生了最严重的白化事件,波及90%以上的大堡礁珊瑚。

A visitor poses for a photo on the glass bridge, in August. (Photo provided to chinadaily.com.cn)

Editor's note: During the just-concluded May Day holiday, "glass paths" became the new buzzword in the tourism sector. Two experts share their views with China Daily's Zhang Zhouxiang on the mushrooming of glass-bottomed walkways over gorges in scenic spots across China.

Are the 'glass paths' worth the trouble?

Glass-bottomed bridges were first built between two cliffs so that people could enjoy the scenery around while being aware of the scary depth of the ravine below. For example, in Baishi Mountain Geological National Park in Baoding, North China's Hebei province, a 95-meter-long, 2-meter-wide glass-bottomed walkway was built at an average altitude of 1,900 meters to allow visitors to experience the beautiful but stomach-churning scenery below.

The problem is that glass-bottomed walkways have mushroomed across China. Search glass-bottomed walkways on domestic tourism website tuniu.com, and you will find that 24 cities have built such "glass paths" as their tourist sites. And since a majority of the "glass paths" have been built across valleys bereft of natural beauty, one cannot but question the wisdom to build them.

The rush to build "glass paths" shows the officials in the domestic tourist sites lack creativity. Instead of using the inherent advantages of the tourist sites, they are busy copying ideas and examples from others. Such homogenization fails to meet tourists' diversified demands.

More importantly, the glass needed for the glass-bottomed walkways is expensive and the total cost of such a bridge can run into several million yuan, and some tourist sites may fail to earn enough revenue to cover the expenses, let alone make profits, which would be a waste of tourism resources. And any compromise with the quality of the glass or the overall glass-bottomed bridge could spell trouble.

Liu Simin, vice-president of tourism at Beijing-based Chinese Society for Future Studies

Such bridges need total safety system

No major accidents have been reported from glass-bottomed walkways. And many tourism sites claim double-or multi-layered armored glass, which is three to four times stronger than ordinary glass, have been used to build such walkways.

But good safety records do not necessarily guarantee safety in the future. There is a national standard for the glass used in outer parts of structures (as a curtain wall for a building for example) but no special standard for the glass used in glass-bottomed walkways. I do not mean to raise unnecessary alarm, but without a national standard no one can ensure safety forever on the "glass paths".

Besides, people tend to equal the risk with glass-bottomed bridges to the cracking of glass and people falling into the ravines. But that is not the only risk.

On April 9, the overcrowding on a glass-bottomed bridge in Mulanshengtian tourism zone in Wuhan, Central China's Hubei province, amidst heavy rainfall caused an accident in which one person died and three were injured. The incident should be a lesson for us. Regular safety checks must be conducted to test the strength and durability of such walkways, while the maintenance and supervision staff should be fully trained to know under what conditions the walkways should be closed and how to deal with emergencies.

Besides, not everybody is fit to walk on such "glass paths", because looking down into a deep ravine might raise a person's blood pressure, increasing the risk of a heart attack. In fact, several reports have said tourists started crying out in fear on such walkways. The tourist sites with such walkways should therefore display clear safety instructions so that visitors know the risks and people with unfavorable health conditions stay away from them.

Only a comprehensive safety system can ensure tourists' safety on glass-bottomed bridges.

Gong Jian, an associate professor at Wuhan Branch of China Tourism Academy

  

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