optical axis verticality的用法和樣例：
例句
- There is uprightness inspection after the primary assemby and the final assembly of the fhree axis of evry machine to ensure tfhe uprightness between evry two axis.
每一台機器皆經初組裝三軸檢測，與后組裝三軸檢測，確保每一台機器的三軸垂直度精確。 - The greatest lateral force effect in the plane perpendicular to the measuring axis is to be stated.
作用在與測量軸垂直的平面上的最大側力作用是一定的。
