Engineering, 22.07.2021 06:20 ledtje03

Tính năng suất của máy ủi khi sử dụng nó để san phẳng mái taluy nên đường. Biết rằng cự ly san 100m; góc tạo giữa mép lưỡi và trục dọc máy ủi 15 0 ; thời gian quay
máy 30s; tốc độ san 10m/s; số lần san qua lại 1 chỗ là 5; chiều dài lưỡi ủi 3m; hệ
số sử dụng thời gian là 0,2.

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Tính năng suất của máy ủi khi sử dụng nó để san phẳng mái taluy nên đường. Biết rằng cự ly san 100m...