乙基纤维素(EC)是一种热塑性的非离子型纤维素醚，可溶于多种有机溶剂，在低温下仍能保持良好的挠曲性。
Ethyl cellulose (EC) is a thermoplastic nonionic cellulose ether, soluble in various organic solvents, at low temperatures can still retaining the with adhesive, filling and film good flexibility.
它是在褶皱冲断带负载的作用下，岩石圈通过区域性均衡调整及流变挠曲而形成的。
They were formed through regional isostatic adjustment and Theological flexure under the load of fold-thrust belts.
坡折带的发育演化具有明显的阶段性和继承性：早期为断裂坡折带，晚期为挠曲坡折带。
The development and evolution of the slope-breaks are episodic and successive: in early period, it is faulted slope-break; in later period, it is flexural slope-break.
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