Scientists racing to tackle plastic pollution have created a surprising new contender: a biodegradable packaging film made partly from milk protein. Researchers at Flinders University blended calcium caseinate with starch and natural nanoclay to form a thin, durable material designed to mimic everyday plastic. In soil tests, the film fully broke down in about 13 weeks, pointing to a realistic alternative for single-use food packaging.
Historic weight, clearly showing the various bulks and cuts I've made over the years. Only the last 5 years are rendered in this graph, with the last 3 years having tracked my weight way more frequently.
。关于这个话题，新收录的资料提供了深入分析
2002年，国内开展燃气轮机“打捆招标”，为东方电气带来了一丝转机。通过引进国外制造技术，没吃过“猪肉”的东方电气得以看见“猪跑”，打破此前“闭门造车”的困境。。关于这个话题，新收录的资料提供了深入分析
Фото: Jon Nazca / Reuters
The state of the art for WebAssembly on the web is that every language builds their own abstraction of the web platform using JavaScript. But these abstractions are leaky. If you use WebAssembly on the web in any serious capacity, you’ll eventually hit a point where you need to read or write your own JavaScript to make something work.