region n. 1.地方,地域,地带;地区;行政区,管辖区,区;左近,邻近;(大气、海水等的)层,界,境。 2.【解剖学;动物学】(身体的)局部,部位。 3.(学问等的)范围,领域。 4.〔罕用语〕天空。 a fertile region 肥沃地带。 a desert region 沙漠地带。 forest regions 森林地带。 the lower [infernal, nether] regions 地狱。 the middle [lower, upper] region of the air 大气的中[下、上]层。 the operating region 工作范围。 in the region of 在…附近,在…的左右(in the region of 45 dollars 四十五美元左右)。
d and d D and D, D & D = 〔美俚〕 1.drunk and disorderly (警察用语)酒醉后扰乱治安的。 2.deaf and dumb 又聋又哑的;〔比喻〕装聋作哑的(尤指因为怕报复而对坏事不加告发)。
The space - time distribution of chinese semi - ari d region surface water is n ' t even , the differences in a year are obvious ; the differences of underground water between years are not so obvious as surface water , but it still has a decreasing tendency , especially in shanxi and sha ' anxi provinces . there is a significant linear correlation between the precipitation and water resources in semi - arid region , the dynamic regularity of water resources is basically same as the dynamic regularity of precipitation 半干旱地区地表水资源时空分布不均匀,年内分配差别大,地下水资源年际间变化率不大,但总体有减少的趋势,尤以陕西和山西突出。半干旱地区降水量与水资源量线性相关显著,降水量的变化规律基本上与水资源量的变化规律吻合。