本文主要叙述了如何从甘油蒸馏残渣中回收聚甘油.In this paper, how to recover polyglycerol from distilled residue is discribed.结论: 可吸收聚羟基乳酸网包裹肾脏是修复多发深层肾裂伤的有效方法.Conclusions: Wrapping the kidney with a Vicryl mesh is feasible for repair of lacerat...
...a grizzled old age pensioner...头发花白、靠养老金过活的老人He is already an old man and pensioner, but quite active.他已经是个老年人,领养老金了, 但是精力相当充沛.The tax threshold for a pensioner is $ 6,000.领退休金的人的纳税起点是六千美元.The delighted pensioner walk...