可降解的

Second, the commonly used ring-opening polymerization between glycerol and lactide for the preparation of degradable polyurethane network was replaced with the more simple and economic method, which is polycondensation between lactic acid and glycerol.

其次，我们用乳酸和丙三醇的直接缩聚代替常用的较为复杂的丙交酯和丙三醇的开环聚合法用于可降解聚氨酯交联网络的制备。

Copper contaminated soil was selected, Brassica juncea and Elsholtzia splendens plants were used, then simulation experiment, hydroponic culture, column leaching experiment and pot experiment were conducted to study (1) effects of organic chelants on the Cu specition in soil solution and soil soild phase;(2)Effect and mechanism of organic chelants on plant growth and Cu uptake by plant;(3) nutrient addition on plant growth and Cu accumulation;(4) limitation of chelant in soil;(5) Desolving on nutrient and heavy metals in soil and their environmental risk by chelant application and (6) effects of degradable organic chelant and microbial materials on plant growth and phytoremediation efficiency of Cu contaminated soil.

选择铜污染土壤，利用印度芥菜和海州香薷植物，通过室内模拟试验、水培试验、土柱淋溶试验、温室盆栽试验，开展了以下六方面的工作：（1）有机络合剂对土壤铜固-液相形态、浓度变化的影响；（2）有机络合调控对对植物生长与铜吸收的影响及其机理；（3）养分调控对植物生长和铜积累的影响；（4）有机调控剂的作用时限；（5）有机物对土壤养分、重金属的络合溶解和淋溶作用与环境风险；（6）可降解络合剂及微生物菌剂对海州香薷修复污染土壤的效应。

Phytase can add to the feed of monogastric animals and hunan food. The addition of phytase to feed and food can resolve the antinutrition of phytic acid, increase the bioavailablity of protein and minerals, decrease animals' fecal phosphorus excretion and reduce environment pollution.

植酸酶可添加于食品与饲料中，能消除因不能降解的植酸所引起的抗营养作用，提高机体对蛋白质及多种微量元素的利用率，降低粪便中磷的含量，从而减少环境中磷的积累污染，有利于保护生态环境。

The compound of bioglass and bone morphogenic protein possesses much high inductive potentialties and the ability of rebuiding bone defect and can serve as an autograaft substitute material and had an great foreground in clinical trials.

溶胶凝胶生物活性玻璃复合骨形成蛋白人工骨具有高效的诱导成骨能力和良好的生物降解性，可成功的修复大段的骨缺损，是一种骨缺损修复的良好的生物材料，有着广阔的临床应用前景。

The present invention provides a method for preparing biodegradable and biocompatible, porous, polymeric scaffolds for tissue engineering, which comprises the steps of: dissolving a polymer in an organic solvent to prepare a polymeric solution; mixing an effervescent salt in the resulting polymeric solution to give a polymer/salt/organic solvent mixed gel; removing the organic solvent from the polymer/ salt/ organi c solvent mixed gel; and effervescing the salt in the resulting polymer/salt gel to yield a polymeric scaffold.

一种用于组织工程学的生物可降解和生物相容的多孔聚合物支架的制备方法，该方法包括下列步骤：在一种有机溶剂中溶解一种聚合物以制备聚合物溶液；在所得的聚合物溶液中混入泡腾盐，得到聚合物／盐／有机溶剂混合的凝胶；从聚合物／盐／有机溶剂混合的凝胶中除去有机溶剂；和在酸性溶液中浸泡所述凝胶以使所述盐泡腾产生聚合物支架。

OBJECTIVE: To compare the biocompatibility, as well as restenosis following drug eluting stent and metal stent implantation, in addition, to prospect the clinical application of biodegradable stent.

目的：比较并总结金属裸支架与药物洗脱支架的生物相容性及支架置入后的冠状动脉再狭窄，展望生物可降解支架的临床应用。

Biodegradable composites reinforced with bagasse fibre were prepared by a press forming,and the thermal properties of fibre and the flexural modulus of composites were investigated in view of the fibre content and length.

利用压制成型制备了甘蔗渣纤维增强可降解复合材料，分析了纤维的热分解性能，研究了纤维含有量和纤维长度对材料弯曲模量的影响，利用Cox剪滞法和材料的结构特点，探讨了一种新的修正模型对弯曲模量的预测。

But the new idea of packaging today is a visual element into "" humanized design concepts, a Visual surface and trimensional unfoldings of packing method with the newexplanation, adcocate in intelligentized packaging model of modern science and technology in the art of beauty, emotional attachment between the mutual relationship between hard, it's human nature to packaging designers to design space of higher requirement; the last stage is the packaging to be destroyed or decomposition recovery critically "" new concept and packaging of the important points stressed that eco-green packaging, packaging, focused on social enterprise, to promote the recycling of packaging materials, biodegradable materials, and low-cost resources are widely used.

而本日的陈理念包装侧是不兵不听觉元素融入&人道化&的安排观点洋，不兵不听觉平背与三维不不平背的包装开折法有了陈的讲解，倡导在智能化的古板科技包装造型洋表现艺术之美感、亲情互慰的人道干系，这是差包装安排师在安排不时间洋的更矮请求；末了一个阶段是包装的保存或搀分发放阶段，也是&陈理念包装&乃至残禽兽成群倡导的重给不步地，夸不小绿色包装、生态包装，夸不小向企业、向社会传播包装的复活质料、可降解质料以及矮本钱资源的普及答用。

Poly lactic acid is a biodegradable and processable high polymer, which is widely used in chemical engineering, agriculture and pharmaceutical industry. D-LA is hence going to form a huge potential market. Fermentative production of D-LA by microorganisms is the primary method in industry, which is applied by several factories abroad.

聚乳酸因具有优良的生物可降解性和加工性能，应用于化工、农业和医药等方面，因而D-乳酸市场潜力巨大。D-乳酸的工业生产主要应用微生物发酵法，国外已有2~3家D-乳酸生产企业，而我国目前尚无D-乳酸制备研究或工业化生产的报导，该技术亟待发展。

These photocrosslinked alginate hydrogels, with tailorable mechanical properties and degradation rates, may find great utility as therapeutic materials in regenerative medicine and bioactive factor delivery.

这种具有可调的力学性能和降解率的光交联海藻酸盐有望作为治疗材料广泛应用于再生医学和生物活性因子的转运。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。