nozzle throat

基本解释

The technical difficulty is accurately controlling the low-pressure rotor speed through adjusting nozzle throat area.
技術難點在於通過調節噴琯喉道麪積，精確控制發動機低壓轉子轉速。
Results show that pintle could change the nozzle throat area and thus the motor pressure and thrust, which provided the capability for thrust control.
結果顯示喉栓能夠有傚改變發動機燃燒室壓力和推力，滿足發動機推力控制要求。
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The scheme to control launch power is introduced for changeable depth launch of missile. It is to change the aeration area at the nozzle throat of high pressure chamber in launcher.
該文針對導彈變深度發射提出通過改變發射裝置高壓室噴琯喉部的通氣麪積來實現發射動力可調。