| 例句 |
The two boards are joined at right angles to each other.这两块板子成直角相交。An old Roman road crosses the modern street at right angles.一条罗马古道和现代街道成直角相交。Hold the nail at a right angle to the board.扶住这颗钉子，使之与木板成直角。Make sure the post is square to the floor. 要确保柱子与地面成直角。The wings were at right angles to the line of flight.机翼与航线成直角。The two cars were parked perpendicularly to each other.两辆车成直角线停放。The ordinary and extraordinary rays were interconverted when the crystals were placed at right angles.晶体成直角置放时，寻常光与非寻常光便互相转换。His large ears stuck out almost at right angles.他的一对大耳朵撑出来几乎成直角了。The axis of the moon will now be exactly perpendicular to that of the earth.月轴此时与地轴正好成直角。 |