下降

Using a single pulse solar cell tester with constant light intensity for 5ms, we have studied the performance of conventional crystalline silicon solar cell with low concentrator( 1～10 sun)and cells temperature of 15～110℃at laboratory.

结果表明，室温下常规太阳电池的最佳工作点电压V_m和光功率放大系数a随入射光强增加呈现先增后降的趋势，并且串联电阻小的电池下降速度慢，串联电阻大的电池下降速度快；温度对晶体硅太阳电池的工作电压和输出功率相当敏感；在严格控制太阳电池工作温度的条件下，串联电阻小的电池在较宽的聚光范围内可以获得良好的使用效果。

In the smoke-exposed mice, PGC-1alpha mRNA was decreased, by 48% in soleus and 23% in EDL.

暴露在吸烟环境的小鼠，PGC-1α mRNA表达下降，在比目鱼肌和趾长伸肌分别下降了48％和23％。

Our preliminary data suggest that presbycusis in human might be related with stability decrease in spectral representation of central auditory neurons under stimulation condition of larger sound loads.

本研究的初步结果揭示，人类衰老过程中出现的听功能下降很可能与听神经元在大声负载条件下的时间表征稳定性下降有关。

This research uses high sensitive piezoelectric sensor for developing a sensitive sphygmograph to detect anthropic pulse and to determine parameters to diagnose physiology of human. From spectrum of pulse, the analysis processes are to determine the high pass frequency used in the analysis, uses the IIR Buttorworth filter to remove the noise, to calculate the Hermite curve for filtering the oscillation parts caused by breathe, then to calculate the parameters in strength, time and angle domains from the processed signal to study their correlation with the physiology of the studied experimenters and compared the results with the machine from the market.

中文摘要本研究采用高灵敏度压电感测元件，发展敏锐的脉搏感测仪器，量测人体手腕脉搏波形，计算其中所包含之参数来探讨与研究人体生理状况相关性的适用性；藉由分析脉搏频谱成份并使用Buttorworth滤波器过滤高频杂讯，再使用Hermite方程式去除手腕低频振动杂讯，由过滤后的脉搏讯号萃取振幅强度、波形上升与下降时间、上升与下降角度等参数，经由统计分析探讨与人体生理之情况相关性，并将所获得指标结果与市售仪器所量测之数据变化进行比较。

Undesirable structure and tree species simpleness etc are main problem in existing urban forest, influence urban forest effective exert its zoological function(2) urban forest landscape indexes show: urban forest fragment increased form 1985 to 1995, and decreased form 1995 to 2007, but as a whole, Beijing urban forest fragment is degressive, especially woodland and spinney land.

2在研究时段内北京市城市森林景观指数变化明显，从1985-1995年间破碎化程度增加，而1995-2007年间下降，1985-2007年总体呈下降趋势，其中有林地和灌木林两种主要城市森林用地类型的变化剧烈；城市森林尤其是有林地用地受到人为干扰影响强烈，斑块日益简单化，主要类型城市森林间相互转化现象严重，说明北京市城市森林在研究时段内发生了很大变化。

The photosynthetic rate decreasing of un-pretreated was not caused by plant spiracle.Thephotosynthetic rate decreasing of the pretreated plant was caused by plant spiracle in the first andsecond low temperature stress day,The photosynthetic rate decreasing of the pretreated plant wascaused by other factors in the third and fourth day.

在胁迫过程对照植株光合速率的下降是由非气孔因素引起；锻炼植株光合速率的下降在胁迫的前两天是由气孔因素引起，在胁迫的第三和第四天是由非气孔因素引起。

The two biggest advantages of the machine; automatic adjustment rate of decline, reducing the vibration of the equipment; decline in the saving of time, down at the end of the sponge cloth and the impact of different products can meet the production requirements.

这两种机的最大优点是；自动调节下降速度，减少了对设备震动；节约了下降的时间，降底了对布料和海棉的冲击，更能满足不同产品的生产要求。

One spot of uniersally good news was the drop in deaths among both men and women for colorectal cancer; it saw the largest decline of all cancers because of increased awareness and early screening.

通常的好消息中的一点是在男性和女性中的结肠癌死亡都下降了；它是所有癌症下降最快的，因为人们警觉性增加和早期的检查。

A centrifugal governor rang an alarm bell if gyro rpm fell too low, and support sprag wheels on either side were automatically lowered to prevent the car falling over.

1离心调速器响了一警钟，如果陀螺转速下降过低，并支持sprag轮子，任何一方被自动降低，以防止汽车下降。

Crime did go down in New York, but was it directly related to the squeegee decline?

在纽约，犯罪率确实下降了，但是这直接和"车道上擦汽车玻璃"下降相关吗？

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。