曳引钢丝绳曳引受力时,绳芯油脂向外()。停止受力时、绳芯油脂向内()。
参考答案:渗油;吸油
I think that eating much vegetables is than eating much meat. [ ]
A. more healthy
B. unhealthy
C. much healthier
如果某4M电极的电极系数变大了,则测得的4M曲线是偏低还是偏高?并说明理由。