According to Boeing company vice president of branch of one-time use carrier rocket says, now heart Er the emissive contract year ago already achieved its 4 rockets 2 0 0 4 18.

• 据波音公司一次性使用运载火箭分部副总裁称 ,现在德尔它 4火箭 2 0 0 4年前的发射合同已达到了 18份。