沃壤

Mizhi County 15 an agricultural county with a farmland area of 570,000 mu and know for producing coarse cereals such as millet,haricot,cowpea, pea, and mung bean.Mizhi millet is especially famous for a long period of time.

米脂县是一个农业县，耕地面积57万亩，以盛产小米、扁豆、豇豆、豌豆、绿豆等各种小杂粮而闻名，特别是米脂小米久负盛名，＂以沃壤宜粟、米汁淅之如脂＂而著称。

Be in early period of age the Warring States, namely today on city of chaste tree state's located river Chinese Campagna arisen the Hunan country with powerful and prosperous rich and popular, the fertile soil that ancient Yun Mengze precipitates, chinese, 3 rivers collect chaste tree, Hunan the wisdom that connect, advantaged geographical and natural condition, make age 5 bully with the Warring States 7 hero all dare not covet, reason comes when a large number of heroes of absorb of the Qin Dynasty, still have " Chu Shengsan door, die the hearsay of Qin Bichu ".

早在春秋战国时期，即今荆州市所处的江汉平原上就兴起了富庶强大的楚国，古云梦泽沉淀的沃壤，汉、荆、湘三江汇通的聪明，得天独厚的地理自然条件，使春秋五霸和战国七雄均不敢觊觎，故至秦并吞群雄时，尚有&楚剩三户，亡秦必楚&的传言。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。