At present, either gas bearings or active magnetic bearings(AMB) are excellent in high speed rotary bearings and ultraprecise rotary bearings.是什么意思_At present, either gas bearings or active magnetic bearings(AMB) are excellent in high speed rotary bearings and ultraprecise rotary bearings.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句