主题：黑鹰直升机在空陆航最初的飞行岁月 -- 潘涌

布什差点答应了，但是FBI反间谍机构要求禁售，说是可以监视中国在美特工活动情况

恭喜：你意外获得【通宝】一枚

鲜花已经成功送出。

此次送花为【有效送花赞扬，涨乐善、声望】

Rome is not built in one day. What support Black hawk is advanced techology and mature experience. China is indeed lack of accumulating technology as well as experience. It happened before, probably is still so now. Moreover, China didn't pay attention to either training or keeping a competent team in a certain field, which would cost quite a lot of money. Westerns won't export you experiences and technologies, except for merchandices.

Good one.