Loi
abbr. [空]月球轨道导入（lunar orbit insertion）
🗣️ 情景例句
I see. Then you don't have any collateral.
我明白了。那么你们没有任何担保物。
He was anxious about his son's safety.
他担心他儿子的安全。
This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second.
这种通讯联系要靠21厘米波段，即每秒1420兆周的精确无线电频率。