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関東各地で山火事相次ぐ　自衛隊ヘリなどが消火活動　栃木・鹿沼市　茨城・常陸太田市　ともに未だ延焼続く　神奈川・小田原市　鎮圧も消防隊員1名が体調不良で緊急搬送_我的网站

一 |     

    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 
。    関東各地では山火事が相次ぎ、自衛隊のヘリなどが消火活動にあたっています。きのう午後1時ごろ、栃木県鹿沼市の粟沢トンネル付近の山林で火事が起きました。

二 | 地元の消防や自衛隊のヘリなどが出動して消火活動にあたっていますが、これまでにおよそ10ヘクタールが焼け、現在も鎮圧のめどは立っていないということです。一方、19日にも茨城県常陸太田市で山林火災が発生し、自衛隊のヘリなどが消火活動を行っていますが、およそ14ヘクタールが焼け、2日以上たった今も延焼が続いています。いずれの火事でもけが人は出ていません。また、きょう正午前には神奈川県小田原市で焚き火が一時、燃え広がりました。火事は現在、鎮圧されましたが、消防隊員1名が体調不良を訴え、緊急搬送されています。

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Published on:08:24:55