发布时间:2025-01-24 05:00:07
3.4×0.043+3.14×7.2-31.×0.15简便计算
3.4×0.043+3.14×7.2-31.×0.15
=0.0001x(34x43+314x720-31x1500)
=0.0001x(1462+226080-46500)
= 0.0001x181042
=18.1042
品色270EX/270EXII 闪光灯柔光罩佳能专用基本参数
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