A new rolling type of spherical enveloping worm gearing with point meshing is proposed.

提出了一种新型滚动式球面包络点啮合环面蜗杆传动；

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Installation of door closers and rolling type hinge, so that can ease the doors open automatically, and without any noise and collisions.

加装闭门器和滚动轴承式合页，使门扇能够轻松自如自动开启，且无任何杂音和碰撞。

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This way made it facility to modulate and chang rolling type. On the other hand, it was easy to be made. Efficiency was improved and the cost was reduced.

这种卷封方式换型调整方便，制作加工简单，既提高了生产效率，又节省了生产成本。

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What type of gaming content will you be rolling out?

FORBES: eSports Will Be Part Of The Focus On YouTube's New Video Game Channel START

Strategy board games back in the 1970s and '80s, like "Blitzkrieg" and "War in Europe, " were simulation-type games requiring players to spend a lot of time rolling dice to resolve combat or find out different game stats -- weather conditions, civil unrest, troop rally points.

CNN: The rebirth of turn-based strategy games

Those of us involved in rolling out improvement programs that mirror failed efforts from the past are not using effective critical thinking type skills.

FORBES: Connect