By Tim Hepher PARIS (Reuters) -Airbus on Monday confirmed slower deliveries in July as a supply crunch left semi-finished jets outside its factories without engines, but bolstered its future business with confirmation of a major new order from China. The European planemaker said it had delivered 46 planes in July, down from 60 in the previous month and 47 in July 2021. Airbus last month revised down its delivery forecast for the year to 700 aircraft from a previous goal of 720 after gaps in the supply chain left it without enough engines. Several newly assembled and liveried A320neo jets could…