英语词汇“natural background level”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	natural background level
释义	natural background level 自然基准
随便看	contour sod strip contours of constant geometric accuracy contour software contour spacing contour spectrum contour spinning contour squeeze contour squeeze molding machine contour stitcher contour strip cropping contour strip farming contour strip intercropping contour stripping contour structure contour surface contour survey contour symbol contour template contour terrace contour thinning contour tillage contour tolerance contour tone contour tracing contour tracing apparatus 手不停披于百家之编手不停脚不住手不干净手不提篮，肩不担担手不摸红，红不染手手不稳手不能提篮，肩不能担担手不能提，肩不能挑手不释卷，博览群书手不释卷，口不绝吟せれくしょんせれくとせれくとしょっぷせれなーでせれぶせれもにーせろせろはんせろはんてーぷせろふぁん