| 单词 | 中心轴 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔butterfly valve〕A disk turning on a diametrical axis inside a pipe, used as a throttle valve or damper.节流阀，减压阀：管道内沿直径中心轴线上的圆片状旋钮，用作节流阀门或阀门美国传统〔helicopter〕An aircraft that derives its lift from blades that rotate about an approximately vertical central axis.直升机：螺旋桨叶围绕一根近似垂直的中心轴旋转而使其升高的飞机美国传统〔trochoid〕Capable of or exhibiting rotation about a central axis.旋转的：能够绕中心轴旋转的，或正在绕中心轴旋转的美国传统〔wheel〕To cause to turn around or as if around a central axis; revolve or rotate.旋转：使盘旋，使仿佛绕着一中心轴旋转；旋转，回旋美国传统〔wheel〕To turn around or as if around a central axis; revolve or rotate.旋转：围绕或仿佛围绕一中心轴而转动；盘旋，旋转美国传统 |
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