等级 – phrases

Terms for subject Construction containing 等级 | all forms | in specified order only

Chinese	English
商业等级铝	commercial grades aluminium
应力等级	stress grading
木材应力等级	timber stress grading
波特兰水泥等级	Portland cement grades
等差等比级数	arithmetic-geometric series
等级网格	graded nets
配合可靠性等级	grade of fit
黑白亮度半色调等级	tones of grey