So we created a soft channel all the way around them to give those devices a bit of a mechanical advantage.

所以我们在它们周围创建了一个软通道，让这些设备有一点机械优势。

Like inclined planes, pulleys are used to gain a mechanical advantage: objects are easier to lift using a pulley system than by using your own two hands.

和斜面一样，使用滑轮是为了获得机械优势：使用滑轮系统比使用你自己的双手更容易举起物体。

Helpful when you're trying to lift heavy objects, the inclined plane offers a mechanical advantage: the force required to move an object up the incline is less than the weight being lifted.

当你想要举起重物时，斜面可以提供机械优势：将物体沿斜面向上推所需的力小于直接举起物体的重量。