paddle pump 中文意思是什麼
paddle pump
解釋
槳式泵-
Among the designs left by leonardo da vinci almost 500 years ago ? with notes written backward to be read with a mirror ? were the parachute , life jacket , water pump , swim fins , well digger , paddle - wheel boat , horseless carriage , sprocketchain , steam gun , water turbine , lens - grinding0 machine , shrapnel , machine gun , airplane , helicopter , submarine , and mass production
近500年前列奧納多?達?芬奇留下的許多設計稿? ?即須通過鏡子才能讀懂的反著寫的筆記,其中有降落傘、救生衣、水泵、游泳腳蹼、鉆井機、明輪機、無馬馬車、扣齒鏈、蒸汽槍、水輪機、磨鏡片機、子母彈、機關槍、飛機、直升飛機、潛水艇和成批生產的設計。 -
A kind of new ferritic stainless steel for the paddle wheel of pump used in phosphoric acid slurry
磷酸料漿泵葉輪用新型鐵素體不銹鋼的研製 -
Paddle pump designing
葉片泵設計
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