29.鍋爐系統中，懸浮在爐水表面者，是什麼水垢？ (A)硫酸鹽水垢 (B)碳酸鹽水垢 (C)矽酸鹽水垢 (D)泥垢

29.鍋爐系統中，懸浮在爐水表面者，是什麼水垢？
(A)硫酸鹽水垢
(B)碳酸鹽水垢
(C)矽酸鹽水垢
(D)泥垢

答案：登入後查看
統計： A(89), B(302), C(34), D(14), E(0) #604658

詳解 (共 1 筆)

蔡捷仁

B1 · 2016/11/23

#1524640

碳酸鹽水垢是最常見的，這種水垢主要出...

(共 123 字，隱藏中）

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35.In order to ensure the propulsive efficiency and to obviate the use of heavy-duty reduction gearboxes, what is the developing trend for the ship propulsive system? (A)Adopt low speed propulsive diesel engine that drives the propeller directly. (B)Adopt high speed propulsive engine that drives the propeller directly. (C)Adopt gas turbine engine as the propulsive engine that drives the propeller directly. (D)Develop the combined power plants that directly drive the propeller at high speeds.

29.鍋爐系統中，懸浮在爐水表面者，是什麼水垢？
(A)硫酸鹽水垢
(B)碳酸鹽水垢
(C)矽酸鹽水垢
(D)泥垢

詳解 (共 1 筆)

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