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- 주사전자현미경 "SNE4500M Plus" Premium Version of Highest-end SNE-4500M Plus (A) / (B) Resolution: 5nm (30kV, SE Image) Magnification: 30x~150,000x Detector: Secondary Electron(SE) / Backscattered Electron(BSE) Vacuum: High / Low Stage: X,Y, Z, R, T : Fully motorized
- [영국생활] 영국의 학제와 유치원 리셉션(Reception)과정 초등교육에서 후기중등교육까지 각 단계별(Key stage)로 교육과정을 운영하며 각 Key stage가 끝나는 학년에 학업성취도 평가를 한다. Key stage 1: Year 1~2 Key stage 2: Year 3~6 Key stage 3: Year 7~9 Key stage 4: Year 10~11 중등교육 일반자격시험과정
- Copper beneficiation process Copper beneficiation flow General beneficiation process: raw coal→primary crushing→secondary crushing If the copper infect particle size is more fine, a stage of grinding and screening process can be used