illustration of lead acid car battery showing lead dioxide plate, lead plate and sulphuric acid - 試藥 幅插畫檔、美工圖案、卡通及圖標
illustration of pure hydrogen catalytically reacted with pure nitrogen in compressor to form anhydrous liquid ammonia in haber-bosch process - 試藥 幅插畫檔、美工圖案、卡通及圖標動作
Technician defrosts frozen reagent cartridges inside the Plasma Nucleic Acids laboratory in the Li Ka Shing Institute of Health Sciences at the...