The 9th AAF's fighters, P-47 Thunderbolts and P-51 Mustangs, roared and dived at German strong points unhindered by Luftwaffe [German Air Force] interference.

第9空军联队的P-47霹雳火战斗机和P-51野马战斗机轰鸣着冲向了没有德国空军掩护的重要目标。

youdao

Patients whose visual acuity (VA) before surgery was< 6/60 in the better eye comprised 47% of the total case mix in poorly developed countries and 1% in developed countries (P < 0.001).

不发达国家中，手术前较好眼睛的视力低于6/60的患者占总病例组合的47%，而在发达国家中此比例仅为1%（P<0.001）。

youdao

Therefore it followed that extensive radical operation with lymph node dissection along this line resulted in 5-and 10-year survial rates of 68% and 47% which were better than otherwise (P<0.01).

因此我们主张按此淋巴转移规律进行扩大淋巴清除术，其中5年生存率达68％，10年生存率达47％，生存率明显高于其他术式（P＜0．01）。

youdao

While a handful of smaller U.S. exchanges exist today, they tend to specialize in options, and, notably in the case of the American Stock Exchange, exchange-traded funds. (See story, p. 47.) A quirk in a 1975 U.S. securities law has allowed the regional markets to trade shares listed on the New York and American exchanges in a way that is attractive to big brokerage houses, keeping the smaller bourses alive on life support.

FORBES: World Markets