No micropipe is found, indicating that its density has fallen to a relatively low level.

没有发现微管的腐蚀形貌，说明微管密度已经下降到比较低的水平；

youdao

No micropipe is found, indicating that its density has fallen to a relatively low level.

没有发现微管的腐蚀形貌，说明微管密度已经下降到比较低的水平；

youdao