单作

The average iR drop accounts for about 74% of the total voltage losses during the C-D cycle at current density of 60 mA·cm-2,suggesting the voltage efficiency of vanadium redox-flow battery single cell with graphite felt as electrodes and Nafion 117 as battery separator,was limited by the cell ohmic internal resistance.

以石墨毡为电极、Nafion 117作隔膜的全钒液流单电池，在60 mA.cm-2电流密度下，每一充放电循环的平均iR降约占总电压损耗的74%，表明该电池的电压效率受制于电池的欧姆内阻。

The second chapter is about a word list of monosyllables and special words.

其次是词汇部分，其中的单音词汇部分对三交话中能单用的字作了一个总结；还分析了一些特例字。

Based on the mechanism of the occurrence of debris flow and the volume of rainfall in the basin, a systematic study on the occurring of debris flow in Jiangjia Gully was done and a suggestion that the hydrological condition for forming debris flow is the unit discharge of the flood ≥ 0.35m2/s.m was gotten.

研究从泥石流发生的机理入手，对泥石流的形成作了系统的研究，提出蒋家沟形成泥石流的水力条件是洪水单宽流量≥

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％。