detecting elementdetectorend organfeelerprimary control elementsensitive elementsensor灵敏: sensitive; keen; quick; agil ...元件: element; component; part; ce ...主灵敏元件: primary sensitive element红外灵敏元件: infrared sensing element耐酸灵敏元件: acid-proof feeler下载手机词典可随时随地查词查翻译