Txhawm rau txhim kho kev ruaj ntseg thiab tswj qhov tseeb ntawm gyroscope kev sib hloov, lub rotor yuav tsum tau ua los ntawm high-density tungsten alloy. Piv rau gyroscope rotors ua los ntawm cov hlau lead, hlau, los yog hlau cov ntaub ntawv, tungsten raws li alloy rotors tsis tsuas muaj gr ...
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