变距

变距 [biàn jù]

1. ■ displacement; shifting （断层）

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常用词组

1. ■ 变距风扇 variable pitch fan;

2. ■ 变距干涉仪 variable-spacing interferometer; variable base-line interferomete;

3. ■ 变距机构 pitch control [change] mechanism;

4. ■ 变距螺旋桨 {航空} variable pitch propeller; controllable pitch propeller; variable-pitch air-screw