| 1. | 3 . the formation period of annuli is mainly from april to june every year
青海湖裸鲤的年轮每年形成一次，主要形成时间是4 6月。 |
| 2. | In yanchang formation period , the environment is favorable to the development of the lake delta
摘要靖安油田延长组长6段储层为湖相三角洲前缘砂体。 |
| 3. | When the formation period of formation water is different to its host rock , its chemical property in oil layer may be entirely different to adjacent water layer
沉积盆地中的外来水可以来源于浅部或地表，重力是其运移的主要动力。 |
| 4. | ( 4 ) for the debate between behavioral models and random walk , the reasons of profitability of strategies with different formation period differ widely
( 4 )有关行为模型与conradandkaul ( 1998 )观点之争论：中国股市中不同形成期策略其获利性因素差异很大。 |
| 5. | The results indicate that most of the lithologic oil accumulation of the three main depressions in erlian basin eventually formed in early to mid cretaceous , and compared with most structural oil accumulation in the basin the lithologic ones represent the characteristic of relatively earlier formation period
研究表明，二连盆地3大主力凹陷岩性油藏的成藏期多在白垩纪的早、中期，相对于二连盆地构造油藏的形成期具有明显的早期成藏的特征。 |
| 6. | ( 2 ) there is stage of soil formation from the evolution of pedogenic environment in the weihe valley during holocene . soil formation shows the law of evolving from warm and wet strong soil formation period to cold and dry dust deposition period ( weak soil formation period ) and to warm and wet strong soil formation period again . the loess - soil sequence is a compound soil sectional system of different kinds of soil evolution under different bio - environment and pedogenic processes
（ 2 ）通过对全新世渭河流域成壤环境演变问题的讨论，揭示了全新世渭河流域土壤的发育具有阶段性，表现为由温湿的强成壤期向冷干的沉积期（弱成壤期）演变、再向温湿的强成壤期演变的规律；黄土一古土壤序列是不同生物气候环境下、不同成壤过程发育的不同土壤类型演替而形成的复合型土壤剖面体系；而且由于冬夏季风环流及其环境效应在空间上的差异，使得复合型土壤剖面体系也存在着南北差异。 |
| 7. | Original planation surface has some features , for example , it appears in large area with low altitude , small gradient and taking a long formation period , etc . discrimination of planation surface is based on plotting and field investigation and by using statistical methods and " 3s " technique
原始的夷平面具有分布面积较大(全流域范围) 、坡度较小、高度较低、形成所需时间较长、有夷平作用的痕迹等特点。基于野外考察和室内作图，可利用数学统计方法和“ 3s ”技术进行夷平面的识别，这加强了夷平面研究的精确性、客观性和定量性。 |
| 8. | Finally , in order to study the feedback trading by chinese security funds , this paper researches the relationship between herding in formation period and the abnormal returns one quarter , half year and one year before the formation period and during the formation period . chinese security funds use the feedback trading strategy to some extent . the higher the herding in the formation period is , the higher the abnormal returns one quarter , half year and one year before the formation period and
最后，为了研究基金的正反馈交易，本文研究了基金在形成期之前一个季度、半年、一年以及形成期的超常收益率与形成期羊群效应之间的关系，发现中国证券投资基金存在一定程度的正反馈交易行为；形成期羊群效应较高的组合的形成期之前一个季度、半年、一年以及形成期当期的超常收益率较高；形成期之前一个季度、半年、一年以及形成期当期的超常收益率较高的组合的形成期羊群效应较高。 |
| 9. | We have also studied fracture formation and moving period by means of growth triangle zone and equilibrium section technology . the result is that fracture formation period in diffirentt struture zone are very d ' rffirent . the basic law is that from the north to the south , the fracture formation period is later and later
利用生长三角带和平衡剖面技术对断裂形成时期和活动时期进行了研究，结果表明，不同构造带断裂形成时期存在很大差异，基本规律是从北到南断裂形成时间越来越晚，但断裂主要活动时期则在库车期?第四系。 |
