- They are by-products from the oil extraction .
- These by-products have a greater direct impact on our lives .
- They supply great quantities of agricultural by-products to the state .
- About two-thirds of the weight of phosphate rock consists of unsalable by-products .
- The technological by-products of science are more readily comprehensible than fundamental science itself .
- by-product revovery unit 什么意思
- by-product sales 什么意思
- by-product silver 什么意思
- by-product suppressant compound 什么意思
- by-product suppressor 什么意思
- by-products deliver goods department 什么意思
- by-products of the processing of cereals 什么意思
- by-products processing room 什么意思
- by-products recoveries 什么意思
- by-products sales 什么意思