讨论了聚合物降解的情况及对减阻的影响。
The degradation of the polymer and its effect on the drag reduction are also discussed.
关于紫外线辐射使聚合物降解的原理，专家们是有分歧的。
The mechanism of polymer degradation by ultraviolet radiations is not agreed upon by experts.
依据这些试验结果，结合了微球大小和聚合物降解度对于药物释放的作用得到了相应的数学上的结论。
Based on these experimental results, a suitable mathematical theory has been developed that incorporates the effect of microsphere size distribution and polymer degradation on drug release.
本发明还涉及制备介观结构沸石的方法，以及将其用作有机化合物裂解催化剂和聚合物降解催化剂的方法。
The invention also relates to a method of preparing mesostructured zeolites, as well as using them as cracking catalysts for organic compounds and degradation catalysts for polymers.
一个办法是保持足够的剪切以快速清洁机筒内表面。因为当聚合物与金属接触太长时间后会发生聚合物降解。
One solution is to maintain sufficient shear to wipe the metal surfaces constantly, since most polymer degradation occurs when polymer contacts metal for too long.
研究者采用了一种叫PLGA的生物降解聚合物来制造镜片，首先将其溶解在有机溶剂里，然后加入药物。
To make their lens, the researchers took a biodegradable polymer called PLGA and dissolved it in an organic solvent, and then they added their drug.
飞利浦公司已经开发出一种新的药剂，这些药剂被预先封装在可生物降解的聚合物胶囊中，这种胶囊就像制导导弹一样能够直达肿瘤。
Philips has developed a way for drugs to be encapsulated in bubbles made of biodegradable polymers that can be delivered to a tumour like a guided missile.
非有机材料必须被删除，除非它们是由几个新的淀粉基生物降解聚合物，随着时间的推移。
Non-organic materials must be removed, unless they are made of several new starch-based polymers that biodegrade over time.
直到最近，PCL的并没有被广泛应用在生物降解聚合物由于成本原因，大量使用。
Until recently, PCL was not widely used in significant quantities for biodegradable polymer applications due to cost reasons.
一些生物可降解聚合物，例如聚酯，已经作为辅料应用在药理学中。
Some biodegradable polymers such as polyesters have already been employed as excipients in pharmacology.
本文论述了聚合物溶液超声降解的影响因素；
The effects of ultrasonic degradation of polymer in solution are reviewed in the paper.
许多这些聚酯与淀粉混合应用的成本竞争力的生物降解塑料的聚合物。
Many of these polyesters are blended with starch based polymers for cost competitive biodegradable plastics applications.
他们的设计为直径约为天然血小板十分之一的球体，材料与可吸收缝合线使用的生物可降解聚合物一样。
Their design involves spheres about one-tenth the diameter of a platelet and made of the same biodegradable polyester used in absorbable sutures.
这种生物降解塑料类是被许多人是回答使财产概况类似商品，如聚乙烯聚合物的完全生物降解塑料。
This class of biodegradable plastics is seen by many to be the answer to making fully biodegradable plastics with property profiles similar to those of commodity polymers such as polyethylene.
硫脲和硫代硫酸钠均可减轻污水溶液中聚合物的降解。
Thiourea or sodium thiosulfate can reduce polymer degradation in RPW solutions.
聚丙烯及许多其它的聚合物(RH)若在缺少稳定剂的情况下进行加工或在户外使用，就会发生链式降解反应而遭受破坏。
PP and many other polymers (RH) are attacked durIng processIng or outdoor use In the absence of stabilizers because of a chaIn degradation reaction.
本文论述了聚合物溶液超声降解的影响因素；对超声波降解机理及超声降解动力学进行了讨论。
The effects of ultrasonic degradation of polymer in solution are reviewed in the paper. The mechanism and the kinetics of ultrasonic degradation of polymer in solution are introduced.
木质素是第二天然聚合物，木质素的降解是碳素循环中的关键一步。
Lignin is the second natural polymer. The biodegradation of lignin is the key step of carbon recycling.
这一特性减少了聚合物滞留并降解的可能性。
This reduces the possibility of degradation of polymer and detained.
目的构建以乳铁蛋白作为靶向功能基、可生物降解聚合物泡囊为载体的脑靶向递药系统，并对其脑部递药特性作出药效学评价。
OBJECTIVE to prepare a novel brain targeting system, lactoferrin conjugated self-assembled polymer vesicles (Lf-PVs), which the brain delivery property had been evaluated in vivo.
按用途的不同，综述了可降解磷酸酯聚合物的合成与应用近况。
According to different purposes of phosphate ester polymers, the recent progresses on their syntheses and applications are reviewed in this paper.
热稳定剂是一类能防止或减少聚合物在加工使用过程中受热而发生降解或交联，延长复合材料使用寿命的添加剂。
Thermal stabilizers is a class of additives to prevent or reduce polymers heat in the processing then to be degradation or cross-linking, to extend the lifecycle of composite materials.
一些生物可降解聚合物，例如聚酯，已经作为辅料应用在药理学中。
Some biodegradable polymers such as polyesters hae already been employed as excipients in pharmacology.
为归纳聚合物超声降解动力学的一般表达式，对常用动力学方程的适用性进行了探讨。
In order to conclude a general expression of ultrasonic degradation kinetics for polymers, the general applicability of the common kinetics equations was discussed.
针对一种新型可降解植入式药物载体的高效制备需要，进行聚合物多腔体微结构热压成形设备的温度控制装置和温度控制系统研制。
For the needs of a new type of biodegradable implantable drug delivery, temperature control device and temperature control system of the hot-embossing equipment were designed and manufactured.
目的：介绍生物可降解聚合物及其在药物纳米控释系统中的应用。
Objective: To introduce biodegradable polymers and their application to nanometer-sized controlled drug delivery systems.
环丁砜降解产生的一些酸性腐蚀性物质和大分子聚合物造成了设备的腐蚀，堵塞了换热器和再沸器等设备。
Some acid corrosion matters and high polymer produced by sulfolane degradation in hydrocarbon extraction may corrode equipment and jam the heat exchanger.
同时可降解聚合物成分对HA的过快降解具有控制作用，使得HA降解与新生骨组织生成速率匹配。
Furthermore, degradable polymer can contribute to too fast degradation of HA to match the rate between degradation of HA and formation of fresh bone tissues.
同时可降解聚合物成分对HA的过快降解具有控制作用，使得HA降解与新生骨组织生成速率匹配。
Furthermore, degradable polymer can contribute to too fast degradation of HA to match the rate between degradation of HA and formation of fresh bone tissues.
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