There is admittedly artificiality and oversimplification in this approach.人们承认这种方法带有人为性并且过分简单化.There is an old saying that "we are what we eat". Obviously this is an oversimplification.有这样一句古老的谚语，“吃啥像啥”。这一认识显然过于简单化了。This...
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...