3. 船舶推進固定葉距螺槳 (FPP) 其英文全文書寫為：
(A) Fetch Pitch Propeller
(B) Feed Pitch Propeller
(C) Fined Pitch Propeller
(D) Fixed Pitch Propeller

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統計： A(14), B(10), C(3), D(65), E(0) #1957012