“step wedge”的概念、定义、翻译、参考文献-科学参考

单词	step wedge
释义	step wedge [`step ´wej] ^{GRAPHIC ARTS} A series of tones in steps from white to black usually on film or a glass plate for testing purposes.
随便看	swallow buoy swallow float swallow hole swamp swamp buggy swamper swamp fever swamping resistor swamp itch Swan swan Swann bands Swan Nebula Swanscombe man swapping sward swarf swarf cut swarmer cell Swarts reaction swartzite swash swash bulkhead swash mark swash plate

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。