open fold

基本解释

When children open the fold, they will uncover illustrations of various elements taken directly from the accompanying scene.
每当儿童翻开折页的时候，他们就会发现不同的插图内容。
The deformation of the Changting low-grade metamorphic rock series occurs mainly as kink structures and open fold except as tight folds possible in local segments.
长汀浅变质岩系除局部地段可能存在紧闭褶皱外，以膝折带构造及宽缓褶皱变形为主。
A full-size astromech rested within a spring-loaded socket on the port wing, and the craft's wingtips could fold open, revealing hexagonal panels when the ship entered combat mode.
在左翼弹簧支承的机器人位里可以安置一个完整大小的宇航技工机器人。当进入战斗模式时，飞船的翼尖能展开，形成六边形的面板。

The seed treatment lowers the amount used 10 to 20 fold, decreasing the need for open spraying of the plant, a genuine sustainability benefit.
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See, it still has small jump seats behind driver and passenger (suitable for pre-adolescent children only), but these fold flat and the back window pops open, hatchback style.
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