verb · referring to a fixed point in geometry or fixed-point representation in computing

这种微处理器主要用于处理定点运算。

noun, preposition · appointed, specific, or occurring at a fixed time or place

大巴车会在定点时间和地点接送员工。

verb · to determine or fix a location

救援人员正尝试通过卫星信号进行定点。