B. U.
英
美
[医] 棱底向上
双语例句
- It was pointed out that the resin should be processed in high towing speed, high B. U. R and high frost-line in order to make the films have proper longitudinal tear strength ( MD) and horizontal tear strength ( TD).
试验发现：为保证合适的薄膜纵向撕裂强度和横向撕裂强度，应在高牵引速度、大吹胀比和高起霜线的条件下进行该树脂的加工。