单位长度质量 meaning in English

linear mass
mass per unit length

Seamless and welded steel tubes . dimensions and masses per unit length
无缝钢管和焊接钢管.尺寸及单位长度质量
Textiles - woven fabrics - determination of mass per unit length and mass per unit area
机织物单位长度质量和单位面积质量的测定
Textiles - woven fabrics - determination of mass per unit length and mass per unit area
纺织品.机织物.单位长度质量和单位面积质量的测定
Textiles . test for woven fabrics . method of determining of mass per unit length and mass per unit area of pieces
纺织品.织物试验.整匹布单位长度质量和单位面积质量的测定方法
Aerospace series . textiles for parachutes . tests on braided parts . determination of the diameter or width and thickness and the linear mass
航空航天系列.降落伞用织物.编织部分的试验.直径或宽度和厚度及和单位长度质量的测定