And the major task of input part is programming the IAL input engine of touch screen, then bringing forward the arithmetic of key functions and the mapping of physical coordinate and pixel coordinate.
输入部分则主要是实现触摸屏的IAL输入引擎实例，提出关键函数的具体流程，并探讨触摸屏物理坐标到象素坐标的映射算法。
And the major task of input part is programming the IAL input engine of touch screen, then bringing forward the arithmetic of key functions and the mapping of physical coordinate and pixel coordinate.
输入部分则主要是实现触摸屏的IAL输入引擎实例，提出关键函数的具体流程，并探讨触摸屏物理坐标到象素坐标的映射算法。
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