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Physics, 06.09.2021 14:00 damilysgonzalez2

Tính áp lực của một đục bê tông sử dụng khí nén Ft Cho biết các thông số sau : P = 5 át(5kg/cm2) lưu lượng Q = 30m3/1 phút ,diện tích của pít tông đầu búa A = 50 cm2

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Tính áp lực của một đục bê tông sử dụng khí nén Ft Cho biết các thông số sau : P = 5 át(5kg/cm2) l...

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