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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.(2) A ship required not to obstruct the passage or safe passage of another ship when approaching another ship poses a risk of collision shall not be relieved of this responsibility, and when taking actions, due consideration shall be given to actions that may be required by the provisions of this Chapter.Crossing the gate of impermanence, Allie entered the dark passage leading to the incinerator. She groped her way forward, but at the end she could not find the next way. A person was in the dark. Apart from the simulated "Death Roar" sound in the passage, she could not see or hear anything and did not dare to touch it. "I was afraid that there would be a fan blade that would cut off my finger." Ellie said, recalling the experience that prompted her to change her future life.陈启才开始说的时候，还有些开玩笑的意味，但是越说越觉得对。该剧改编自祈祷君的同名小说，讲述了游戏架构师肖鹤云（白敬亭 饰）和在校大学生李诗情（赵今麦 饰）在遭遇公交车爆炸后“死而复生”，于公交车出事的时间段内不断经历时间循环，从下车自救到打破隔阂并肩作战，努力阻止爆炸、寻找真相的故事。　　2004年2月9日，沈浩作为安徽省第二批选派到农村任职干部来到了小岗村。自从实行大包干以后，由于种种原因，小岗村是“一夜越过温饱线，二十年没跨过富裕坎”。在沈浩到任之前的十年间，曾有五六名县乡干部先后到小岗村挂职任书记，却并没有让小岗村人满意。这更加激发他去实现自己的梦想，小岗村给他带了希望，去一个实现自我价值的地方。1946年夏，还都南京后不久的国民政府在各阶层民众的强烈呼吁下，向驻日盟军总司令部郑重提出要求，将制造南京大屠杀的元凶之一、乙级战犯石岩夫引渡到中国首都南京进行审判和惩处。邢剑，这个被认为年轻毛躁的上尉军官，阴差阳错地参与了两次挫败石岩夫旧部劫救师团长的企图，从而被任命为国防部特勤小组组长。他不顾自己地下党员身份已被怀疑的处境，在党组织支持下，带领四名组员，开始了危机重重的押送战犯历程。从东京到大连，从天津到武汉，从芜湖到上海……从空中到海上，从火车到驳船，从农村到城市……面对明里暗里交替出现的两股敌人——日本军国主义死硬分子和尚未暴露的军委会汉奸高官——邢剑等始终以民族大义和国家利益为最高宗旨，艰苦卓绝，斗智斗勇，大义凛然，不畏牺牲，最终将罪大恶极的战犯押回南京，押上法庭；同时揭露了当年出卖三百部下给731细菌部队当“马路大”（试验品）的惊天大案……