电池电流

This constant emitter current, multiplied by a constant α ratio, gives a constant collector current through Rload, provided that there is enough battery voltage to keep the transistor in its active mode for any change in Rload's resistance.

这个恒定的发射极电流，乘以恒定的系数α，就得到流过负载Rload的恒定的集电极电流。前提是电池电压足够高，不论Rload如何变化，晶体管都能工作在放大区。

The feedback resistance, R1, is dependent on cell sensitivity and should be chosen for either maximum dynamic range or for a desired scale factor. R2 is elective: in the case of photovoltaic cells or of photodiodes, it is not required in the case of photoconductive cells, it should be chosen to minimize bias current error over the operating range.

反馈电阻R1的取值由电池的灵敏度和要求的最大动态范围，或者需要的电流——电压转换比例决定。R2分情况选取：在光电池和光电二极管时不需要这个电阻，在光电导的时候，电阻的阻值应该能使在工作范围内，由OP输入偏置电流所带来的误差最小。

A small current output and intermittent middle current pulse were demanded in the battery for BP.

寻呼机用电池要求小电流连续放电加上间歇中电流脉冲。

Alkaline batteries, applicable to both small current work long hours while intermittent large current work, such as BP machine, Flash, shavers, calculators, and other instruments.

碱性电池，适用于既能长时间小电流工作又能间歇大电流工作，如BP机、闪光灯、剃须刀、计算器、仪器仪表等。

L Applied battery range is wide: charge current can be set between 10% to rating, can't be influenced by the change of input current and voltage, keep constant in the process of constant charge and no need hand adjustment.

l 适用电池范围广：充电电流可在10%-额定值内任意设定，且不受输入交流电压变化的影响，在恒流充电期间电流维持不变，无需人为再调整。

L Applied battery range is wide: charge current can be set between 10% to rating, cant be influenced by the change of input current and voltage, keep constant in the process of constant charge and no need hand adjustment.

l 适用电池范围广：充电电流可在10%-额定值内任意设定，且不受输入交流电压变化的影响，在恒流充电期间电流维持不变，无需人为再调整。

The calculated results validate the rationality of molecular structure design for TPA-based organic dyes.5.Effects on DSCs performance by dye bath solvents were investigated,and dichloromethane is chosen for sensitizers' comparison.6.The Incident Photon-to-Ccurrent Conversion Efficiencyand Current-Voltage curves of the DSCs based on the as-prepared dyes were measured.The relationship between dye structures and photovoltaic performance of the DSCs were studied.

计算结果证明了三苯胺基染料分子结构设计的合理性。5、研究了TiO_2膜的染料敏化时所用溶剂对电池性能产生的影响，结果表明，二氯甲烷溶液敏化的膜电极，用于DSCs的测试，均表现出较好的光电性能。6、通过入射单色光光电转换效率以及电流-电压曲线的测试，系统表征了三苯胺基染料敏化的DSCs的光电转换性能，揭示了影响电池性能参数差异的因素。

The batteries can be traced back to the earliest years ago invented by the Italian physicist photovoltaic PV cellists allows for the first time a relatively steady and constant current, and is of epoch-making significance.

最早的电池我们可以追溯到两百年以前意大利物理学家伏打发明的伏打电池，它使人们第一次获得了比较稳定而持续的电流，具有划时代的意义。

This utility model is combined with controller series, attain the required voltage, and then put the resulting series DC voltage by oscillators converts AC voltage.each solar battery pack over-discharge buildingup, dangelmayer, adopted by the series of microprocessor and complementary components of the circuit to control this control circuit management, together with the ciyutuo program software to make up the " serries solar battery charging and discharging controller ", do not need inverter adrenotensin, you can be used directly for energy saving lamps or other to adapt to the mains voltage electrical and electronic appliances, and thereby save General inverter converts adrenotensin faches as a result of waste, and therefore reduce the time of conversion of electrorheological, Terminal′s makes solar power and use have become a stable and reliable.

本串联型太阳能电池充放电控制器就是结合控制器之间的串联，达到所需电压，再把串联所得到的直流电压，通过震荡器转换为交流电压。每个太阳能电池组对蓄电池的充、放电，采用串联的由微处理器及配套元件组成的电路进行控制管理，此控制电路并配合配套的程序软件组成了&串联型太阳能电池充放电控制器&，不需要逆变器升压，就可以直接使用节能灯或者其它适应市电电压的电子电器设备，从而省掉常规逆变器转换升压环节所造成的浪费，并因此减小转换时低压端的电流，使太阳能发电和使用都变得稳定可靠。

According to the experimental results, both the conducting area and material of current collector slices have great influence on the performance of micro PEMFC, especially the former one. The increment of cell's performance is finite by increasing the gas reheats temperature. The performance is better for open ratio 75% compared with 50% and 67%. The concentration polarization is improved by increasing the air flow rate at high current density and if the GDL diffusive capability in the latter cell could be promoted, the differences between these two cells' performances would be reduced.

由实验结果可知，集电片的导电面积与材料对於电池性能有显著的影响，尤其是前者；对於增加反应气体的再热温度，微型燃料电池增加的性能有限；双极板开孔率75%相较於开孔率为50%与67%有最佳的性能曲线；增加阴极气体空气的流量，可以改善高电流情况下的浓度极化现象，所以若我们能增加气体扩散层的扩散能力，则可以减少两者的性能差距。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。