Roller coaster and jumping machine is the car itself has a speed, and then take your body forward, the whole person is back.

过山车和跳楼机都是这个车本身有一个速度，然后带着你的身体往前冲，整个人属于后仰状态。

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This paper analyses factors of influencing papers superpose in high-speed cut paper machine, puts forward the control method.

分析了影响高速切纸机中纸张搭结的因素，给出了控制方法。

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Since the special material feeding parts, the machine can keep the back forward and the forward needle gauge absolutely the same during high speed sewing.

送料机构独特，使高速缝制时的倒顺送料针距能保持完成一致。

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This involves pitching the machine's nose up to reduce its forward velocity and increase the speed of rotation of the blades (and thus the amount of lift they provide) to soften the landing.

ECONOMIST: Monitor