Attitude indicator and crosswind

Hello,

I am new to the MiG-15. I am reading the manual and, at page 57, on the AGK-47B attitude indicator, it is written that:

(6) TURN INDICATOR MARKER indicates the presence of angular velocity. Deflection for one “turn bar” of the indicator corresponds to the roll of approximately 10° at the speed of 500 km/h. When the aircraft angular velocity reaches 4 degrees per second, the indicator (“turn bar”) will reach the extreme position – if the angular velocity increases further, the indication will not change. 180,0 мм

I would like to verify my understanding:

Is the turn indicator marker sensible to the effect of crosswinds on the airplane’s trajectory and angular velocity?

Does “deflection for one turn bar” mean the deflection of the turn bar for a distance equivalent to the width of the turn bar?

What does 180.0 mm stand for?

Thanks in advance