单词	晕昏
释义	晕昏 yūn hūndizziness
随便看	precision standard precision standard balance precision star calendar precision static forbid yoke precision static foroid yoke precision static toroid yoke precision steel precision steel casting precision steel castings precision steel tube precision stereocomparator precision stereoplotter precision stereoplotter mapping precision straight edge precision straightening machine precision strike precision-strike precision surface grinding precision surface grinding machine precision sweep precision synthesis precision synthesis of linkage mechanism precision syringe precision system precision-target