Testing VD pathogen through PCR may efficaciously prevent, cure and control VD.利用PCR技术检测性病病原体,可有效的预防, 治疗和控制性病.Results In those pathogen there 52 % is Gram - positive bacteria, there 48 % is Gram - negative bacteria.结果致病菌...
Relationship and control of axis sealing and internal pressure directly affects deformation process in tube hydroforming.圆管液压成形过程中的轴向密封力与内压力的关系及控制直接影响到圆管的成形状态.These lasers usually employ chemical combustion to energize d...
It was a massive, graceless house.这是一间非常难看的大房子。...a graceless pirouette.笨拙的单脚尖旋转She couldn't stand his blunt, graceless manner.她无法忍受他的唐突和粗鲁。a graceless, angry young man粗鲁、愤怒的年轻人...