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通气孔
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通气孔
air hole vent hole pick-up hole spiracle breather hole air vent venthole whistler ventilation hole gas vent venthole ventilating pit airflow orifice
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field distortion
field distribution
field distribution curve
field ditch
field ditch system
field-diverter rheostat
field divider
field document
field domain
field drag
field drain
field drainage
field drill
field drying and harvesting
field-drying transformer
field duty of water
field economizing relay
fielded panel
fielded system
field effect
field-effect amplifier
field-effect capacitor
field-effect controlled switch
field-effect device
field-effect diode
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更新时间:2025/11/25 8:03:54