水平面 (shuǐ píng miàn) — horizontal plane; level surface

Definition

A technical/mathematical term for a perfectly flat horizontal plane. In everyday contexts 'level surface' is more common; 平面 alone is just 'flat surface' without the horizontal orientation.

noun

horizontal planelevel surface

Examples

水平面，。
Zhè ge zhuō zi bú shì shuǐ píng miàn, yǒu diǎn xié.
This table isn't level; it's a bit slanted.
水平面。
Shuǐ zài jìng zhǐ shí huì xíng chéng shuǐ píng miàn.
Water forms a horizontal plane when still.
水平面。
Jiàn zhù shī yòng yí qì cè liáng shuǐ píng miàn.
Architects use instruments to measure the horizontal plane.

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