The two lines meet at right angles.
两线垂直相交。
Two lines cross at right angles.
两线成直角相交。
The two lines cross at right angles.
这两条线互成直角。
A line cuts another at right angles.
一条线与另一条线相交成直角。
One line cuts another at right angles.
一条线与另一条线成直角相交。
These lines are at right angles (to each other).
这些线（互）成直角。
A cleaving tool having a heavy blade set at right angles to the handle.
劈板斧有垂直于斧柄的厚刃的劈东西的工具。
A cleaving tool having a heavy blade set at right angles to the handle.
劈板斧有垂直于斧柄的厚刃的劈东西的工具。
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