contact wire的用法和樣例：
例句
- The line of contact is longer and the contact ratio is bigger, the meshing stationarity is good.
漸開線弧齒圓柱齒輪具有較長的齒面接觸線和較大的嚙合重合度，齒輪副嚙合平穩性好。 - The creeping flow model is singular and therefore unrealistic in the corner of each of the two fluid phases at a moving line of contact.
悄悄流模型的奇異的，因此是不現實的角落裡的每一個階段的兩個流體在移動接觸線。
