Glass rod grinding can improve the concentration of protein;
玻璃棒研磨能够提高蛋白质的浓度;
Finally he bought a pint of pure glycerine and a glass rod a foot long.
最后他又买了一品托纯甘油和一根一英尺长的玻璃棒。
You shake the unit to distribute the filing evenly, with the help of a glass rod that's sealed inside.
里面有玻璃 棒可帮助你在摇晃时使铁粉均匀的散布。
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