flat negative造句

This stops the flat negative end of a cell from connecting accidentally, but also stops the positive end of a flat-top or of a button-top with too large button from connecting.
The positive terminal button should be a minimum 1 mm high and a maximum 5.5 mm in diameter, the flat negative terminal should be a minimum diameter of 7 mm . 14500 Lithium Batteries are longer if they feature a protection circuit up to 53mm.
It's difficult to find flat negative in a sentence. 用flat negative造句挺难的