reference plane的用法和样例：
例句
- This fixture should be provided with a reference leveling surface, so that it can be kept level as the balance deflects.
这种装置应该有一个水平基准面，以便在天平变形时能够使之保持水平。 - ROLL is the instantaneous value of the angle between the reference plane and the horizontal, measured in an athwartship vertical plane.
横摇以从左到右通过舰身的垂直面，量度参考面与水平面之间所形成的即时角度。
