【化】 低级矿; 贫矿石

polymorphous low-grade adenocarcinoma【肿瘤】;terminal duct adenocarcinoma【肿瘤】

low-grade【矿】

low-grade fuel【能源】

polymorphous low-grade denocarcinoma, terminal duct adenocarcinoma

low-grade fever

low-grade goods【贸易】

low-grade infection

low-grade【科技】