Từ điển trực tuyến - Online Dictionary

English - Vietnamese Dictionary
ballast /'bæləst/
  • danh từ
    • bì, đồ dằn (vật nặng để giữ cho tàu, thuyền thăng bằng khi không có hàng)
      • ship in ballast: tàu chỉ có bì, tàu không chở hàng
    • đá balat
    • sự chín chắn, sự chắc chắn, sự dày dạn
      • to have no ballast: không chắc chắn, không chín chắn
      • to lose one's ballast: mất bình tĩnh
  • ngoại động từ
    • bỏ bì (xuống tàu cho thăng bằng khi không có hàng)
    • rải đá balat
Concise Dictionary
+any heavy material used to stabilize a ship or airship
+coarse gravel laid to form a bed for streets and railroads
+an attribute that tends to give stability in character and morals; something that steadies the mind or feelings
+a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)
+an electrical device for starting and regulating fluorescent and discharge lamps
+make steady with a ballast
Advanced English Dictionary
+ noun [U]
1 heavy material placed in a ship or HOT-AIR BALLOON to make it heavier and keep it steady
2 a layer of stones that makes a strong base on which a road, railway/railroad, etc. can be built

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