backingup

英 ['bækɪŋɡʌp] 　 　 美 ['bækɪŋɡʌp] 　 　
  • n. 封底焊

backingup的相关资料：

临近单词

backmen back back-and-foot technique back sliding step technique back filling behind abutment Back - propagation network back-connected stone panel BACK POCKET HEIGHT AT CENTER back-leaning angle of body backcross quantitative trait Back and Forth in Bangladesh backscattered electron image
目录 查词历史