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Polylactic acid (PLA) is a new bio-based and renewable biodegradable material, which is made of starch raw materials proposed by renewable plant resources (such as corn). Starch raw materials are saccharified to obtain glucose, then glucose and certain strains are fermented to produce high purity lactic acid, and polylactic acid with certain molecular weight is synthesized by chemical synthesis method. It has good biodegradability, can be completely degraded by microorganisms in nature under specific conditions after use, and finally generates carbon dioxide and water without polluting the environment, which is very beneficial to environmental protection and is recognized as an environment-friendly material. This thing is actually a long piece, and then "curled up" in it and wrapped in a cylinder shape. What's the use? You will see it in a short time.无论百姓、商人还是官府、卫所，都默默得益于与东海的贸易，更甭提亲友们与苔湾那边曲里拐弯的关系了。Http://www.jiemian.com/article/2081896.html云端失散(浮声六记LIVE版)张毅为江惠芳的丈夫、肥猫王家宝的姨丈。原本身居公司高位，但不料公司裁员，他亦未能幸免；即欲做生意，将积蓄投资于工厂。岂料工厂又发生意外，令他血本无归。再加上四处找工作亦未得，不禁心情恶劣，整日懒散在家，自暴自弃，更一度怀疑妻子不忠。后痛定思痛，重新振作起来工作有成，再次得到家人的尊重，恢复往日雄风。Open mode,一名男子在车祸后在医院醒来。 他不记得他的名字，但很快被发现他是一位着名的律师。 更糟糕的是，警方开始怀疑他谋杀了他失踪的侄女。