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单词
ballast tube
释义
ballast tube
ballast tube
[
′bal·əst ‚tüb
]
(electricity)
A ballast resistor mounted in an evacuated glass or metal envelope, like that of a vacuum tube, to reduce radiation of heat from the resistance element and thereby improve the voltage-regulating action.
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price negotiation memorandum
price non-disclosure
price objective
price of admission
price of blood
price of equity
price of gold
price of government
price of labor power
price of land
price of noninvestment
price of oil
price of production
price on application
price on arrival
price one has to pay
price oneself out of the market
price (oneself, someone, or something) out of the market
price on head
price online
price on one's head
price on request
price optimization
price ourselves out of the market
price out
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更新时间:2025/6/4 22:24:51