研究了赤潮异弯藻、亚历山大藻和中肋骨条藻抗氧化酶活性对UV-B辐射增强的响应变化。
The change of antioxidant enzyme activity in Skeletonema costatum, Heterosigma akashiwo and Alexandrium tamarense under UV-B radiation enhancement were studied.
异种来源的胰岛供体也是一条补充胰岛供体的手段。
Alternative sources of islet cells are also required to expand the technique in an era of reduced Numbers of donor pancreata.
如果能以乙酸与丙烯直接酯化一步合成乙酸异丙酯，则是一条理想的原子经济反应工艺路线。
If the synthesis of isopropyl acetate was manufactured by acetic acid and propylene, it would be a perfect atom economical technical route.
利用生物化学的方法，研究了赤潮异弯藻、亚历山大藻和中肋骨条藻抗氧化酶活性对UV-B辐射增强的响应变化。
The Change of antioxidant enzyme activity in Skeletonema costatum, Heterosigma akashiwo and Alexandrium tamarense under UV-B radiation enhancement was studied using biochemical methods.
给出了定长母线沿两条异面垂直的导线运动而构成的一类新型工程曲面。
This paper provides a new type of engineering curved surface that is from fixed bus moving along two vertical straight lead in different surface.
渭河是黄河的第一大支流，也是一条多泥沙河流，具有水沙异源的特征。
The Weihe River is the biggest and much sandy tributaries of the Yellow River and its water and sediment comes from different source areas.
本文提出了由一条二次曲线和与该二次曲线不共面的两条异面直线为导线，与该三导线均相交的直线轨迹是一个直纹四次曲面，并讨论了二次曲线分别为椭圆、双曲线和抛物线时，形成的曲面的形状特征。
In this paper, it is presented that the locus of a line crossedwith each of two guide lines and a guide conic not being on a commonplane is a ruled surface of fourth order.
两条异面直线的距离也不必要找出公垂线段，只需利用向量的射影性质来解即可。
Two different surface straight lines distance not essential discovers male hangs the line segment, only must solve using the vector projective property then.
本文提出了由一条二次曲线和与该二次曲线不共面的两条异面直线为导线，与该三导线均相交的直线轨迹是一个直纹四次曲面，并讨论了二次曲线分别为椭圆、双曲线和抛物线时，形成的曲面的形状特征。
It is presented that the locus of a line crossed with each of two guide line and a guide conic not being on a common plane is a ruled surface of fourth order.
试验表明，在相同纺丝条件下，涤纶三叶异丝的断裂强伸度和初始模量随丝条异形度的提高而降低，而断裂强伸度变异系数、沸水收缩率和条干不匀率却随之增大。
The test has shown that as the degree of profile increases, the initial modulus and the breaking strength and elongation of profile yarn decreases. We have also quined the findi...
试验表明，在相同纺丝条件下，涤纶三叶异丝的断裂强伸度和初始模量随丝条异形度的提高而降低，而断裂强伸度变异系数、沸水收缩率和条干不匀率却随之增大。
The test has shown that as the degree of profile increases, the initial modulus and the breaking strength and elongation of profile yarn decreases. We have also quined the findi...
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