cover protectively防护性地遮盖
To enclose protectively他过去的经历笼罩着神秘气氛;包围;包蔽
protectively applied nitrogen保护性施氮
Duncan Said Protectively邓肯说保护性
environmentally protectively pervious brick环保透水砖
segreagted ballast tank protectively located专用压载舱保位置
ecologically and environment-protectively efficient economy生态环保型经济