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一 |     

本报北京9月12日电 (记者张天培)记者从公安部获悉:针对目前电信网络诈骗等网络犯罪快速蔓延泛滥,严重侵害公民的合法权益和财产安全,公安机关不断加强国际执法合作,深入推进打击治理电信网络诈骗犯罪。    
A drone made of bamboo-based composite materials is seen in flight. Photo: official WeChat account of Long Bamboo
    A drone made of bamboo-based composite materials is seen in flight. Photo: official WeChat account of Long BambooA Chinese team has developed a drone using bamboo-based composite materials after making a breakthrough in a technique that allows bamboo to be flattened while preserving its tough outer layer. The drone has completed multiple test flights, China Central Television (CCTV) News reported.
Long Bamboo, a company based in East China's Fujian Province, developed the technique that preserves the bamboo's tough outer layer and allows different parts with different densities of the material to be used according to their properties, improving its overall performance.
In the past, the outer skin of bamboo was often treated as leftover material and eventually burned into low-value bamboo charcoal.
According to a company release in February, bamboo-based composites now make up more than 25 percent of the entire drone, while its fuselage skin is made entirely from the company's own high-performance bamboo composite material.
The bamboo-based material also offers a major cost advantage, costing only about one-quarter to one-tenth as much as aviation-grade carbon fiber. After the drone is retired, the material can naturally degrade, allowing it to effectively "come from nature and return to nature."
The team spent four years building data models, upgrading equipment and refining the material. The resulting drone has a wingspan of more than 2.5 meters but weighs only about 7 kilograms, and has already completed multiple test flights, according to CCTV News.
Bamboo was traditionally used mainly in products such as tableware and furniture. Now, however, the material is finding its way into a wider range of industrial applications. Bamboo fiber is being used in automobile interiors, while bamboo-based materials are also being explored as possible substitutes for plastics, glass fiber and carbon fiber in some applications. 
China has the world's largest bamboo resource base, with about 7.56 million hectares of bamboo forests nationwide. The country also ranks among the world leaders in bamboo resources, bamboo cultivation technologies and the development and utilization of bamboo materials, per CCTV News.
Global Times 
。随着全球信息化的快速发展,电信网络诈骗犯罪呈现出专业化、产业化、集团化和国际化特征,诈骗窝点往往设在他国和地区,是典型的跨国有组织犯罪,这既是各国警方面临的重大挑战,也是各国政府打击治理的难题。

二 | 为此,公安机关通过国际执法合作,与多国警方联手开展打击行动,取得了明显成效。据了解,今年3月至6月,公安机关与76个国际刑警组织成员国警方共同参与反诈“曙光行动”,捣毁设在多国的诈骗窝点1770个,逮捕犯罪嫌疑人2000余名,拦截非法资金5000余万美元。公安部有关负责人介绍,我国在境外从事诈骗活动的人员绝大部分是被高薪诱惑、欺骗裹挟偷渡出境。公安机关积极会同有关部门通过国际执法合作对他们开展解救和教育劝返,并全力做好他们回国后的救助帮扶和就业安置工作。

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Published on:09:45:27