爱词霸英语   汉语   手机版   软件版下载 | English
每日一句:正在加载...
1.Specify NOMINVALUE to indicate a minimum value of 1 for an ascending sequence or -10^26 for a descending sequence. This is the default.
试着建了几个递减的序列，最大值为0，增量为-1，结果：最小值为负的26个9！如果不指定最小值，递增的序列默认最小值为1，递减的序列默认最小值为-10的26次幂。收藏指正
2.Specify NOMAXVALUE to indicate a maximum value of 10^27 for an ascending sequence or -1 for a descending sequence. This is the default.
也就是说，最大值为28个9！如果不指定最大值，递增的序列默认最大值为10的27次幂，递减的序列默认最大值为-1。收藏指正
3.According to the rock association,fabrics,sedimentary facies and environment ,the Tuchengzi Formation is broadly divisible in ascending order into oneⅡ-order sequence,two Ⅲ-order sequences and26Ⅳ-order sequences.
根据岩石组合、组构、沉积相及环境变化等分析,本区土城子组自下而上大体可划分为1个Ⅱ级层序、2个Ⅲ级层序、26个Ⅳ级层序。收藏指正
4.The sequence of the section in ascending order is as follows. Uppermost Daihua Fm, it belongs to Siphonodella praesulcata Zone;
黄茆D/C界线层自下而上的层序为:代化组顶部,属于Siphonodella praesulcata带;收藏指正
5.The foraminiferal assemblage sequence can be divided in ascending order into 2 assemblages: II Nodosaria longissima — Geinitzina postcarbanica assemblages, I Palaeotextularia gibbosaeformis — Tetrataxis tenuiseptata assemblages;
Palaeotextularia gibbosaeformis—Tetrataxis tenuiseptata组合; 牙形刺可建立Streptognathodus elongates—S.收藏指正
6.By using the section correlation and tracing by means of geological mapping， the sequence of the Kargang Group is in ascending order： the Aibaona Formation， Ri’azelong Formation， Majunlong Formation and Zhonglong Formation.
采用剖面对比及地质填图追索法确定的卡贡群层序自下而上为哎保那组、日阿泽弄组、玛均弄组和钟弄组。收藏指正
7.Abstract The CarboniferousPermian System in Ordos Basin was formed in marginal barrier sea→delta→river→limnetic environment,and constitute a sedimentary sequence of silicarenite→detrital silicarenite→clastic sandstone in ascending order.
鄂尔多斯盆地石炭二叠系形成于陆缘障壁海→三角洲→河流→湖沼的沉积环境，自下而上构成一个由石英砂岩→岩屑石英砂岩→岩屑砂岩的沉积序列。收藏指正
8.This study shows that the small foraminiferal fauna in the Taiyuan Formation of the Xinwen coalfield in Shandong Province, contains 66 species in 24 genera of foraminifera. According to the distribution and vertical varia- tion of foraminifera fossils in the strata , the foraminiferal sequence can be divided in ascending order into 3 assemblages: 1. Bradyina samarica-Palaeotextularia angusta elongata Assemblage, 2.Nodosaria sinensis-Tetrataxis Assemblage, 3.Geinitzina postacarbonica Assemblage.
通过对山东新汶煤田太原组小有孔虫动物群的系统研究,共鉴定出小有孔虫化石 24 属 66 种,根据小有孔虫在太原组中的垂向分布和含量的变化,自下而上分为 3 个小有孔虫组合:1. Bradyina samarica Palaeotextu laria angusta elongata 组合,2. Nodosaria sinensis Tetrataxis 组合,3. Geinitzina postacarbonica 组合。收藏指正
尝试查询