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whistle board
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whistle board
Encyclopedia
工学
水运交通指示
释
whistle board
鸣笛标
设在通航控制河段或上、下行船舶不能相互通视的急转弯的上下游两端河岸上,指示船舶鸣笛的水上助航标志。
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radioactive deposit mining
radioactive displacement law
radioactive element
radioactive element; radioelement
radioactive equilibrium
radioactive equilibrium coefficient of uranium and radium
radioactive fallout
radioactive forcing
radioactive furrow fertilization
radioactive gas detection
radioactive geophysical prospecting
radioactive heat
radioactive iodine
radioactive ion beam
radioactive ion beam line
radioactive ion beam reaction
radioactive isotope
radioactive isotope hydrogeology
radioactive isotope power sources
radioactive isotope power supply
radioactive isotopes source
radioactive label
radioactive level meter transmitters
radioactive life
radioactive marker
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