First, select the Observation Plane object and the Front surface.

首先，选择观察飞机对象和前面表面。

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A simple method for area measurement of irregular plane object using area array CCD was presented.

文中介绍了利用面阵CCD测量不规则平面物体面积的原理和方法。

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After substituting relevant weight function, transfer function array of generalized plane object can be obtained.

选择并代入相应的权函数后，可得到广义飞机对象传递函数阵。

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And in the plane there is some other object.

在平面上有一个物体

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That'll say the velocity of the object with respect to the ground, the velocity of the object with respect to the plane, the velocity of the plane with respect to the ground.

可以得到物体相对于地面的速度,物体相对于平面的速度,物体相对于地面的速度

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When you have a velocity in the moving plane frame and you want to find the velocity on the ground, you should add to every object in the plane the velocity of the plane with respect to the ground.

当你在运动的飞机上运动,然后你想找到相对于地面的速度,你就应该给每个物体加上,飞机相对于地面的速度

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The first officer saw a bright object ahead of the plane -- the planet Venus -- and mistook it for the approaching C-17.

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And the infinite emptiness of the brilliant sky above means that on the rare occasions when an object, such as a plane or a hot-air balloon, does pass through, the bright contrast lends it such a fierce intensity that it confuses the eye.

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Mach is a measure of the ratio of the velocity of an object, in this case a plane, to the velocity of sound, which equals Mach 1, or 761.2 miles per hour.

FORBES: Magazine Article