“WTTM” 英文缩写

• WTTM Without Thinking Too Much    不用想太多
• WTTM WIYN (Wisconsin, Indiana University, Yale University, and NOAO (National Optical Astronomy Observatories) Observatory) Tip-Tilt Module    Wiyn（威斯康星、印第安纳大学、耶鲁大学和NOAO（国家光学天文台）天文台）倾斜度模块