It may be extended to include land as an input, and technology.
它还可以扩展到包括作为投入物的土地和技术。
On a land vehicle the speed input is usually obtained from the speedometer drive system.
对地面运动体，输入速度通常由测速计的驱动系统来供给。
On a land vehicle the speed input is usually obtained from the speedometer drive system.
对地面运动体，输入速度通常由测速计的驱动系统来供给。
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