There 's less inventory because cash-strapped vendors aren 't adding to their fleets .
因为现金紧缺的供应商不再扩大车队，导致库存减少了。
In fleets that were otherwise well-matched the result was decisive .
加之舰队良好配套的其他设备，结果很明显了。
Despite demands from airlines for better fuel consumption , the market for the existing narrow-body jets is booming again as airline profits recover and fleets age .
