The real problem of interstellar communication does not concern technology.星际通信的实际问题不在于技术.Which kind of signal is most promising for interstellar contact?在星际通讯中,选用哪种信号最有效 呢 ?Fluorescent destruction occurs about once for ...
...interstellar space.星际空间Fluorescent destruction occurs about once for every ten interstellar ultraviolet photons absorbed.每吸收十个星际紫外光子,就会发生一次荧光破坏过程.Which kind of signal is most promising for interstellar contact?在星际通讯中,...
通过引入状态变换, 得到了一类降阶形式的状态估计问题.By introducing state transformation, a reduced - order state estimation form is achieved.介绍了异步电动机全阶数学模型的线性化和降阶的原理,并探讨了降阶模型的准确性问题.The accuracy of the linearized reduced order of induction motors...
从而对人类全面认识原子的自电离过程具有重要学术价值.The above achievements have important academic values for enhancing the knowledge about atomic autoionization process.介绍了一种可调谐激光三步孤立实激发方式测量外电场中原子自电离态光谱的技术.We present a isolated core excitation m...
Exchanging value is the expressional form of value.交换价值是价值的表现形式.His speech is about expressional arts.他的演说是有关表现艺术的.Accompany with risk process of population development, its expressional forms are diverse in different st...