蛇蝎美人第二季

【海山幼儿园】万象复苏旭日升，抬头揽尽二月天。——中国传统节日“二月二，龙抬头”_我的网站

A |     龙抬头          【中国传统节日】          龙抬头(农历二月二日)，又称春耕节、农事节、青龙节、春龙节等是中国民间传统节日。“龙”指的是二十八宿中的东方苍龙七宿星象，每岁仲春卯月(斗指正东)之初“龙角星”就从东方地平线上升起，故称“龙抬头。                   节日来历                              二月二既是龙抬头节也是土地公的诞辰，“土地诞”也称“社日节”。    

    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 
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B | 社日分为春社日和秋社日，古时春社是立春后第五个戊日，秋社是立秋后第五个戊日（戊，五行属土）。古人认为土生万物，土地神是广为敬奉的神灵之一。人们认为土地公管理着五谷的生长和地方的平安，很多地方的百姓都在社日奉祀土地神。土地公又称福德正神，在中国南方地区，为给土地公公“暖寿”，有的地方有举办“土地会”的习俗：家家凑钱为土地神祝贺生日，到土地庙烧香祭祀，敲锣鼓，放鞭炮。

C |          唐德宗在位之时，李泌上书，要求废除正月晦，以二月一日为中和节，以向天下人表示务本之意。德宗皇帝采纳了李泌的意见。汪启淑在《水曹清暇录》一书中说：“二月初一，俗称中和节，起于唐李泌，市中货太阳糕，以祀太阳星君。

D | ”后来人们又将土地神的生日（社日）与这一节日合并，日子又改在二月二日。

E | 同时，从唐德宗时起，中和节又吸收了春分的活动内容，因此，这一节日活动内容也就丰富了                              二月二 习俗                              吃龙食          传统上，人们会吃一些与龙相关的食物，如龙须糖、龙鳞饼等，以表达对丰收的期盼。                   剃龙头          在许多地方，人们会选择在这一天剃头，以示辞旧迎新，寓意着新的一年里能够顺利如意。                   引龙田          在一些地方，特别是在农历二月二“龙抬头”这一天，引田龙的形象会被用来祈求风调雨顺和五谷丰登。                                       二月二 诗词                                        《二月二日》          [唐]白居易          二月二日新雨晴，草芽菜甲一时生。         轻衫细马春年少，十字津头一字行。                   《二月二日游洛源》          [唐]韩琮          旧苑新晴草似苔，人还香在踏青回。         今朝此地成惆怅，已后逢春更莫来。                                       END。

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