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1·Place on a sturdy, level surface.

放在牢固的水平面上。

2·Place battery cover on a level surface.

将蓄电池罩放在水平面上。

3·It's going to be tangent to the level surface, right?

它是与等值面相切的，对不对？

4·Make sure that the vehicle is standing on a level surface.

请确保车辆停放于水平表面。

5·Which coincide with the mean sea level surface is the geoid.

其中与平均海平面重合的面就是大地水准面。

6·We have seen that the gradient is perpendicular to the level surface.

我们已经知道，梯度是垂直于等值面的。

7·Then you know that the gradient of g is perpendicular to the level surface.

那么就知道了g的梯度,是垂直等值面的。

8·Products intended to stand should be stable when placed on a level surface.

设计为站立的产品，将其放置在一个水平面上必须是稳定的。

9·The car should be on a level surface with the parking brake on and engine off.

将汽车停放在水平的地面上，关闭发动机并拉紧手刹。

10·Placing the roof assembly on a level surface can damage the roof assembly frame.

将天窗总成放置在水平面上可能导致天窗总成框架受损。