预计这些改进措施将使得新机成为真正的第四代战机。
The improvements are planned to take the aircraft to a fourth generation platform.
10 B战机增加了一个光电跟踪系统(EOTS)，该系统在通常会在所有四代俄式战机上找到，比如苏- 27和米格- 29战机。
The J-10B has been added with an electronic-optic targeting system (EOTS) commonly found on all fourth-generation Russian fighter aircraft such as Su-27 and MiG-29.
不过，目前世界上有能力购买四代机的国家为数不多，且歼- 31还面对着俄罗斯t - 50和美国F - 35战机等强大的竞争对手。
However, there are not many countries in the world who can afford fourth-generation fighter jets and J-31 has to compete against T-50 of Russia and F-35 of the U. S. in the international market.
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