The development and application of double piston hydraulic cylinder was introduced in this article.
介绍了双活塞液压缸的研制及应用,与单活塞液压缸相比,它具有动作快速、灵活等优点,特别适合在需要快速提供强大推力或拉力的场合。
The fusion protein was purified by affinity chromatography and characterized as a bifunctional aldehyde-alcohol dehydrogenase.
带组氨酸标签的重组NADP(H)依赖型乙醇脱氢酶具乙醇脱氢酶和乙醛脱氢酶双活性,能将乙酰辅酶A转化成乙醇。
