Under different B4C content, layer cover to melt dark to appear change that make a reduction of after increasing with B4C increase of content layer, melt widely and present "n" type change.

在不同的B4C含量下，熔覆层的熔深随b4c含量的增多出现先增后减的变化，熔宽出现“N”型变化。

youdao

Glassey was killed with a steak knife in March 2008 during an attack involving several other teens on a dark street corner in Gloucester County, N.

NPR: Police Arrest 2 Teens In Georgia Baby's Killing