正负

kē xué jiā zài bǐng xī suān zhōng chuàng zào le zhèng fù kōng jiān de xiāng hù zuò yòng

科学家在丙烯酸中创造了正负空间的相互作用。

The scientist creates an interplay of positive and negative space in acrylic.

cǐ cì diàn huà mín diào de wù chā fú dù yuē wéi zhèng fù bǎi fēn zhī sì

此次电话民调的误差幅度约为正负百分之四。

The telephone poll's margin of error is plus or minus 4%.

gāi diào chá de wù chā lǜ wéi zhèng fù bǎi fēn zhī èr

该调查的误差率为正负百分之二。

The poll's margin of error was plus or minus two percentage points.