低值电流minimumdetectableamount: 最低可探测量; 最小检出量minimumcoverofreinforcement: 钢筋保护层的最小厚度minimumdetectablebrightness: 最小可检测亮度minimumcharge: 起码价费minimumdetectableleakagerate: 最小可探泄漏率下载手机词典可随时随地查词查翻译