How was the "marine propeller" taller than three stories made? 科学火箭叔 5:55 3 years ago 501 266 Скачать Далее
Why are the number of blades of marine propellers different? Is more better or less? 科学火箭叔 7:45 1 year ago 58 804 Скачать Далее
船用螺旋桨这么大,是如何一次浇铸成型的? 十万个冷知识 One hundred thousand pieces of knowledge 3:26 3 years ago 433 Скачать Далее
Why doesn't the stern propeller shaft enter the water? There are probably 3 ways 科学火箭叔 8:02 3 years ago 702 603 Скачать Далее
More than 3 floors higher than the ”marine propeller”, is how to make it? Why does it not water] 科学火箭叔 13:46 1 year ago 21 245 Скачать Далее