名词解释题
发布日期:2021-04-30
高聚物在高弹态(橡胶态)时具有的高弹性,又称橡胶弹性。它是相对于普弹性而言的,是高聚物区别于其他材料的一个重要特性。
粘流温度(软化温度)(viscous flow temperature)Tf为高弹态与粘流态间的转变温度, 叫做粘流温度或软化温度。
高弹态(rubbery state)是指链段运动但整个分子链不产生移动。此时受较小的力就可发生很大的形变(100~1000%),外力除去后形变可完全恢复,称为高弹形变。高弹态是高分子所特有的力学状态。
题王网让考试变得更简单
扫码关注题王,更多免费功能准备上线!
此试题出现在
企业电子商务模式有()。
With reference to the requirements under IMO MODU CODE,Operating manuals containing guidance for the safe operation of the MODU unit for both normal and envisaged emergency conditions, to the satisfaction of the Administration should be provided on board and be readily available to all concerned. The manuals should, in addition to providing the necessary general information about the unit, contain guidance on and procedures for the operations that are vital to the safety of personnel and the unit.The operating manual for normal operations should include the following general descriptive information()
You are using a Windows 2000 Professional computer. You create a shortcut for the folder named PROJECTS on the network share. You want to make shortcuts to the projects folder available, when you are not connected to the network. You attempt to configure the shortcut to be available offline. However you do not see an option to make the folder available offline. What should you do?()
经济全球化犹如一把双刃剑,它在产生积极效应的同时,也带来了消极和负面的影响。下列哪一项不属于其消极影响()。
根据我国《环境保护法》,以下说法错误的是()
说明闸片在运用中应注意哪几个方面的检查。
下列费用中属于前期工程费的是( )。
治疗妇女崩漏,应选用的药物是()
由曲柄摇杆机构受力分析可知,压力角越大,有效分力就()
关于腓骨肌萎缩症哪一项错误()
暂无相关推荐~