How to use cross wire in a sentence
As the float approaches AA1, the observer at B keeps it on the cross wire of his instrument.
B now points his instrument in the direction BF, and A keeps the float on the cross wire of his instrument.
Near the cross wire end, hanging from the pipe, was a solid plug, cylindrical in section.An Annapolis First Classman | Lt.Com Edward L. Beach
All being at rest the number on the scale marked by the cross wire of the telescope was 572.Fragments of science, V. 1-2 | John Tyndall
A cross wire in the microscope tells when it is accurately abreast of the line below it.The Romance of Modern Mechanism | Archibald Williams