在低光照强度时，向阳叶和荫敝叶的光合速率部随光照强度的增加而提高，但光照强度超过一定值时，光合速率下降，即发生光抑制。
At low light intensity, the photosynthetic rate of both the shade and unshadeleaves rose with the increase of light intensity until certain limit when the photosynthetic rate began to go down.
结论雌激素替代治疗结合一定频率和幅度的振动运动，可使低切变率下的全血粘度值明显降低。
Conclusion it was shown that blood viscosity at low shear rates can be decreased by certain intensity vibrating movement in ovariectomized rats with appropriate estradiol valerate replacement therapy.
介绍ABB公司励磁系统低励限制的定值整定，分析北京热电分公司1号发电机进相运行时的动作情况以及ABB励磁系统低励限制与失磁保护之间的关系。
In this paper, the author introduced the fixed value setting of underexcited limitation in ABB excitation system. And also analyzed the condensive operation of No. 1 generating unit.
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