美国陆军航空队，相信在白昼轰炸，应以防御性的空中堡垒重轰炸机为组织之骨干。
The u. s. army air forces believed in daylight bombing with the heavily defended fortress type of bomber as the backbone of the organization .
入侵的空中行动与较 早之前英国皇家空军和美国陆军航空队实施的进攻是不能割裂开来的。
The invasion's air operations cannot be isolated from the earlier offensives carried on by the Royal Air Force and U.S. Army Air Force.
入侵的空中行动与较 早之前英国皇家空军和美国陆军航空队实施的进攻是不能割裂开来的。
The invasion's air operations cannot be isolated from the earlier offensives carried on by the Royal Air Force and U. S. Army Air Force.
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