The front windshield was pitted by pebbles, and there was a 3,4 mm crack. Can it be repaired?

Yes, but the weather can't make up for it now. Pay attention to the air conditioning temperature after getting on the bus. If it's too cold outside and the air conditioning temperature inside is too high, the double glass will expand with heat and contract with cold, sooner or later! You can find a special place to repair the glass, but it's only a matter of time before the glass cracks! The place to repair the glass is to drill a small hole, fill it with glue and dry it! !