But South Korean, Japanese, and U.S. officials are skeptical about the North's plan and suspect the so-called satellite launch is in reality a way to test a long-range rocket.

但是韩国、日本和美国的官员怀疑这个所谓的卫星发射实际上是为了试射远程火箭。

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The test principles and test methods of the antenna and satellite RF system in Compensated Compact Range are summarized, and the test errors are analyzed.

概要讲述了利用紧缩场进行卫星整星状态下的天线及卫星系统测试的原理及方法。文章还对该紧缩场的测试误差进行了全面的分析。

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But South Korean,Japanese,and U.S. officials are skeptical about the North's plan and suspect the so-called satellite launch is in reality a way to test a long-range rocket.

VOA: standard.2009.03.12

U.S.officials say the self-described satellite launch would only be a cover for a test of a long-range missile, perhaps a more advanced version of the one North Korea fired eastward over Japan in 1998.

VOA: standard.2009.03.25