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单词
EM
释义
EM
Encyclopedia
医学
有效掩蔽
释
effective masking; EM
有效掩蔽
纯音测听中,当测试听力较差耳时,为防止对侧听力较好耳偷听产生“交叉听力”,在对侧耳处给予掩蔽音干预,从而提高对侧耳听阈,避免偷听,以获得患耳真实听阈水平的方法。
Physics
EM=exposure meter
曝光表
Astronomy
EM
全称:emission measure。发射量度
Chemistry
>物理化学>胶体化学>释义
electron microscopy (EM)
电镜技术
随便看
straightening law
straightening of the angle
straightening theorem
straightest path
straight eyepiece
straight fan
straight fertilizer
straight filament
straightforward
straightforward calculation
straight helicoid
straight knife cutting machine
straight line
straight-line arithmetic program
straight line composition
straight-line direction
straight-line linkage
straight-line method
straight line motion
straight-line representation
straight-line segment
straightness
straightness artefact
straightness measurement
straight photography
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