advance payment for materials
预付材料款
热门单词
- babassu oil
- babbit layer
- babbit bronze
- babbit lining
- babbit melter
- Babbit metal
- babbit metal bearing
- babbit packing ring
- babbit-lined bearing
- babbitt metal
- babble
- babble signal
- Babcock and Wilcox boiler
- Babcock and Wilcox mill
- Babcock apparatus
- babbitt (一种减磨合金)
- Babbitt bushing
- Babcock coefficient of friction
- Babcock test
- Babcock magnetograph
- Babcock's clamp
