Maps (on paper or on the screen) are flat surfaces; they require a transformation from the curved surface of the earth to the flat plane: a map projection.
纸上或屏幕上的地图是平面的；它们需要从地球的曲面向平面进行转换：地图投影。
Does this mean space is shaped like a flat plane, a sphere or a saddle?
是不是这就意味着宇宙的形状就是平面、封闭球体或者马鞍状？
A sphere cannot be represented on a flat plane without distortion, which means all map projections distort in one way or another.
球体在平面上不进行扭曲就无法表现出来，这意味着所有制图方式都会以某种方式出现扭曲。
You're in a vehicle, like a car or plane, that has some sort of malfunction, whether it's broken brakes, no gas or a flat tire.
你在一部交通工具里，比如汽车或飞机，发生了某种故障，可能是刹车失灵、燃油耗尽或者是爆胎。
It is also shown that only when the gratings are cylinder or plane ones, the second order sagittal anastigmatic circular field and meridional non defocus flat field spectral images can be formed.
还指出仅当柱面或平面光栅时，才能形成二阶子午无离焦平场和弧矢无象散圆场谱面。
A Cartesian coordinates robotic system was developed to transplant tissue culture plantlets or scions from a flat plane to culture flasks in order to minimize the need of labor.
本研究设置一套直角座标机器人系统，用以扦挿移植组织培养苗至培养瓶或相关容器中，期能取代移植作业的人工，降低此一产业的人力需求。
The plane body presents a tubular shape or a flat hollow ribbon, one end of the elastic ribbon is arranged inside the plane body to be connected with the plane body, and the other end is a free end.
机身呈管状或扁平空心带状，橡筋一端设置在机身内并与机身相接，其另一端为自由端。
The plane body presents a tubular shape or a flat hollow ribbon, one end of the elastic ribbon is arranged inside the plane body to be connected with the plane body, and the other end is a free end.
机身呈管状或扁平空心带状，橡筋一端设置在机身内并与机身相接，其另一端为自由端。
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