obsidian
相关英语词汇推荐
- hardenability
- lead solubility test
- Graphitizer
- viscosity
- waste
- purify
- single-toggle jaw crusher
- vinyl octyl phthalate
- High-conductivity berllium copper
- vinyl coumarilate
- gravity process
- Hall process
- wheel guard
- specific abrasion energy
- macromolecule magazine
- radition shield
- sanitary landfills
- direct bonded silicon wafer
- thermistor
- tortoiseshell