任何有较强重力的物体都会对其他物体产生引力。Anything with strong gravity attracts other things to it.重返大气层的航天器受到重力的作用。Spacecraft which are re-entering the earth's atmosphere are affected by g forces.由于重力的关系,苹果往下掉.An apple falls down beca...
Electro static Fields in ESD process are theoretically analyzed.分析了静电放电(ESD)过程中的静电场.Violation of ESD or 5 S rules in production workshop.生产区域内操作违反ESD静电防护规则或5S纪律规定的.The results show that temperature gradient has great imp...