国家航天局的一位发言人于本周一公布，“嫦娥一号”将于本周三至周五择机发射，今天下午六时是最佳发射时机。

The satellite will be launched between Wednesday and Friday, with 6 pm today being the best choice, a spokesman for the China National Space Administration (CNSA) said on Monday.

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选择最佳发射点就是以预期攻击效果最佳化来确定开火时机，这对多目标攻击武器系统具有重要意义。

The purpose of selecting optimal launch point is to optimize the attack effect, which is of great significance to airborne multi target attacking system.

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