The cleavage and schistosity acted as an axial plane role in the early generation of compressed shear fold, and changed into a slip plane in the later generation of flexural slip fold.

片理（劈理）为早世代挤压-剪切褶皱的轴面片理，又成为晚世代弯滑褶皱的滑动面；

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The headphones fold flat to slip easily into a briefcase or bag, a storage feature that will appeal to travelers.

ENGADGET: Harman Kardon trots out five iPhone-matching headsets, keeps you in high Apple fashion

Well one of those poor souls must have grown up to become a product designer bent on saving future generations from such cruel torture, and the result is a portable "bonfire" that you can fold up and slip into a knapsack or strap onto your pack mule.

ENGADGET: Bonfire, the Tripod Burner: all the fun of a cookout with none of the work

It securely holds a tablet in place with non-slip rubber grip feet, and features durable thermoplastic components, an adjustable viewing angle, and the ability to fold up for easy storage and transport.

ENGADGET: IK Multimedia's iRig and iKlip STUDIO mobile peripherals learn to play nice with Android, stay friends with iOS