Currently, objects with a radar cross-section of 1m2 are detectable at ranges of 1, 000km.

目前，有着1平方米雷达有效区的物体能在1000千米范围内被探测到。

youdao

It has odd angles (reminiscent of a stealth bomber) to reduce its radar cross-section, and was coated in radar-absorbing material.

它有着怪异的夹角(令人回忆起隐形轰炸机)，以减小雷达横截面，并且涂抹了雷达吸波材料。

youdao

The radar cross-section was further reduced because the wings' leading and trailing edges were composed of nonmetallic honeycomb structures that do not reflect radar rays.

由于机翼和尾部边缘的蜂窝状非金属结构不反射雷达波，所以飞机的雷达反射波就减少了很多。

youdao

The craft could gather intelligence data for defense purposes it has no radar cross-section and makes no noise.

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The discussion established that while the B-2 may occasionally be detected by some radars, its stealth technology reduces the radar cross-section of the B-2 to the point where radar tracking of the requisite continuity and accuracy is impossible.

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Had the early problems it experienced fatal crashes, shortfalls in initial radar cross-section performance and other design problems been made public at the time, the naysayers might have succeeded in preventing the United States from having a Stealth fighter-bomber in the arsenal when it was needed.

CENTERFORSECURITYPOLICY: Center for Security Policy | FOR A CREDIBLE DEFENSE POSTURE IN THE FUTURE, INVEST IN THE B-2 TODAY