Shift your body weight and adjust the angle of your pelvis to find the position that feels best in your sacroiliac area.

调整身体重心和骨盆的角度，找到一个让骶髂关节最舒适的位置。

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And according to expert calculations, the Angle at which our big heads look down forces our spine to bear the weight of approximately 60 pounds.

而据专家测算，我们的头向下看的角度迫使我们的脊柱承受了大约60磅的重量。

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The female can sit up at a 90 degree angle, lean forward towards him (if their weight allows it) or lean backwards and place her hands on the floor for support.

此时，女生可以坐直或向前俯身或向后仰体，可以用手撑住地板。

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As Japan Airlines (JAL) says, it is looking at its operations from every angle to find ways of reducing weight from aircraft, even if it is just by one gram.

CNN: Strict diets for airlines as fuel costs soar

The Polaroid iM1836 even captures wide-angle panoramic shots for impressive landscape photography without the added cost and weight of high-end equipment.

ENGADGET: Polaroid confirms iM1836 mirrorless with Android, adds three more cameras

We'd also caution you that when the tablet is docked inside the keyboard the weight distribution becomes lopsided -- so much so that unless you angle the display just so the whole thing might tumble backward off your lap.

ENGADGET: ASUS Transformer Pad Infinity TF700 review: meet the company's new top-of-the-line tablet