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- The changes in intrinsic time of viscoelastic materials are usually studied in the framework of the free volume theory. 这个特征时间受多种因素的影响,如温度、物理老化、压力和溶剂浓度、损伤、应力水平或应变水平等。
- A detailed mechanism of graded-index formation process was simulated according to the Vrentas-Duda free volume theory. 利用Vrenta-Duda自由体积扩散模型模拟了该梯度型聚合物光纤棒中折射率梯度形成的过程；
- By means of positron annihilation lifetime spectra (PALS), the free volume of polymer could be tested. 通过正电子湮没寿命谱技术(PALS)探测聚合物的自由体积特性,能够了解聚合物的微观性质。
- With the dehydration the free volume inside cages bacame larger, and when dehydrated to a certain degree,Bronsted acid, as the ac. 研究表明，随着水的逐步脱除；笼内自由体积逐步增大；当脱水至一定程度后．笼内开始出现活性中心-质子酸。
- The positron annihilation technique was applied to study the relation between relative free volume and irradiated graft for PTFE. 用正电子湮没技术研究在聚四氟乙烯辐照接枝过程中的自由体积与正电子湮没寿命谱的关系。
- With the augmentation of grain size, surface defects of the manganese zinc ferrite nanocrystallines minish, and intergranular free volume combines. 随着粒径的增大，纳米晶的表面缺陷减小，晶界间的自由体积发生复合。
- Positron annihilation life time spectrum was a new technique to test and characterize polymer structure by research on free volume. 正电子湮没技术是通过自由体积的研究,对聚合物结构探测和表征的1种新型技术。
- The postcuring of studied system caused a decrease of the tensile strength, which is attributed to the increasing free volume as the content of reaction is great. 对所研究的树脂进行后处理引起拉伸强度的降低。这一现象被认为是由于随着反应程度的提高，基体内自由体积的增加所致。
- The sulfonating of polymer decreases the interaction between molecules, and forms an unbending array, so that both free volume radius and intensity increase. 结果表明：磺化基团的引入，降低了分子间的作用力，使得分子间排列不紧密，导致聚合物的自由体积大小与强度同时增加；
- No change of structure in the amorphous phase was found other than the normal densification of the molecular chain packing or a reduc-tion in free volume had occurred during the annealing. 除分子链堆砌密度提高或自由体积下降外,没有发现非晶相有结构上的变化。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- FREE VOLUME THEORY OF HIGH PRESSURE MELTING 高压熔化的自由体积理论
- By the positron annihilation life spectrum (PALS) technique, the free volumes of chitosan and its N alkyl derivatives membranes were measured. 用正电子湮灭寿命谱(PALS)法,研究了N-烷基化壳聚糖膜的自由体积。
- The influence on free volume of polymer by fretting 微动摩擦对聚合物自由体积的影响
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- Keywords WLF equation;Segment;Free volume; WLF方程;链段运动;自由体积;
- He's a fervent believer in free speech. 他是言论自由的强烈信仰者。
- She picked up a new magazine with her free hand. 她用空着的一只手拿起一本新杂志。
- Jon sent away for a free almanac. 乔写信去要一份免费赠阅的年历。
- Now that I am free, I can enjoy music for a while. 既然有空，我可以享受一下音乐。
