without center pole 无中心柱
Stroke of center pole 中心杆行程
Diameter of center pole 中心杆直径
pole center 磁极中心
magnetic pole center 磁极中心
Tractive pole center 牵引杆中心距
A fish is on top of the center pole.
中心柱的顶上有一条鱼。
The tilt of the earth's axis, that imaginary pole that runs through the center of the earth.
地轴是我们虚构的穿过地心的一个倾斜的直线轴。
The gray circle at the center of each image is the "pole hole," north of which satellite sensors have historically been unable to collect data.
每幅图中心位置的灰色圆圈是“极点”,卫星从来都无法在极点以北收集数据。
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