他凹陷的眼睛闪现出喜悦的光芒。His sunken eyes glistened with delight.她看到母亲眼中闪烁着喜悦的光芒。She saw her mother's eyes twinkle with amusement.当她听到这个消息时,她的脸上闪出喜悦的光彩.Her face lit up when she heard the news....
颊窝毒蛇的毒牙是长的空心管子.The fangs of pit vipers are long, hollow tubes.只有四分之一的蛇具有毒液和毒牙.Venom and fangs are found in only a quarter of all known snakes.在蛇的进化史上,毒牙的出现是新的进步.A more recent advance in the evolutionary story of snakes i...
描述了涡电流分选装置的结构以及涡电流分选的应用领域.The configuration and application fields of eddy current separator were described.深入分析了 非 平稳信号的盲解卷算法, 并提出了将其用于雷达信号分选的新思路.After analyzing non - stationary signals blind deconvolution algorithms, ...