查询词典 Tertiary

Geochemical characteristics of 36 Tertiary mudstone samples from Kuqa depression show that the content of CaO is very high, which can somewhat dilute other major elements, trace elements and rare elements. Some reliable indicators for provenance analysis show the source rock nature of noncarbonate sediments. The REE distribution pattern is similar to that of the upper continental crust, characterized by enrichment of LREE and negative Eu anomalies. Some trace element ratios show that the source rocks are mainly felsic.

对库车坳陷第三系36件泥岩样品的地球化学特征分析表明，主量元素中CaO的含量很高，对其他主量元素以及微量和稀土元素有稀释作用，一些可靠的物源分析指标主要指示了非碳酸盐沉积物的源区性质；REE分布模式与上地壳相似，轻稀土元素富集，Eu负异常，微量元素比值显示源岩以长英质岩石为主。

METHODS: A cross-sectional study was performed in patients with infectious and noninfectious uveitis presenting to a tertiary care eye hospital.

对一所三级保健眼科医院的感染性与非感染性葡萄膜炎患者进行了横断面调查研究。

Flexible patterns of employment mainly distribute in small business enterprise, nonpublic ownership economy and tertiary industry.

灵活就业分布的主要部门是中小企业、非公有制经济和第三产业。

Nontuberculous Pyogenic Spinal Infection in Adults: A 12-Year Experience From a Tertiary Referral Center.

非结核性化脓性脊椎成年人感染：12年的经验，从一个专转诊中心。

It was pointed out clearly that there are two kinds of hydroxyl groups in the structure of C〓 Fullerols molecular: one is the tertiary hydroxyl groups, the other is the olefinic hydroxyl groups.

对C〓、C〓富勒醇的结构随其溶液的pH值的变化而发生改变的性质进行了仔细的研究。

In the Tertiary, mountain frontal molasses deposited between the Yarlung Zangbo ophiolitic melanges and the Gangdese granitic batholiths, and the suture zone together with adjacent tectonic units were modified by thrusting and extension to the present tectonic configuration.

在雅鲁藏布蛇绿混杂带和冈底斯岩浆弧的前缘之间形成了山前磨拉石建造，缝合带及相邻构造单元被后期冲断层和伸展作用改造成现在的构造面貌。

The factors responsible for the gas richness in offshore Bohai are represen ted as follows:The thicker deposition sediments,it made the main source rock-Eoc ene Shahejie Formation reach overmature to generate gas;there is huge thickness of Oligocene source rock-Dongying Formation;there are strong Tertiary tectonic m ovements and high heat-flow in the offshore.

海域天然气比陆上富集的主要因素表现在：沉积厚度大，使得盆地内主要烃源岩始新世沙河街组达到高成熟生气阶段；存在巨厚的渐新世东营组烃源岩；具有较强的晚期构造运动和较高的热流值，在浅层也有天然气聚集的领域。

Maturity of Lower Cretaceous source rock, researched by the authors, is closely relative to the deposition thickness of the Tertiary and the Quaternary. It shows that source rock at the depth of 4,000-4,400m is low mature, and 4,400-5,200m is in the peak of oil generating. Correspondingly, the source rock of the Zhonggou Formation is immature; the Upper Xiagou Formation is low mature; and the Lower Xiagou Formation and the Upper Chijinpu Formation are in the peak of oil-generating; and the Lower Chijinpu Formation is at the stage of generation of condensate-wet gas with high maturity. There is no source rock reaching the overmature stage of dry gas at present.

可溶有机质转化率、镜质体反射率、热解、生物标志物特征等参数表明：青南凹陷中部的下白垩统烃源岩生油门限深度为4000m（相应的镜质体反射率为0.65％），埋深4000～4400m为低成熟阶段，埋深4400～5200m为成熟生油高峰阶段，因此中沟组烃源岩未成熟，下沟组上部烃源岩低成熟，下沟组下部和赤金堡组上部烃源岩处于成熟生油高峰阶段，赤金堡组下部烃源岩处于高成熟的凝析油—湿气阶段，目前尚无烃源岩达过成熟干气阶段。

By using density functional theory B3LYP/6-311G++method, the geometric configuration was optimized for tetrahydrofuran、butylene oxide、 secondary oxonium ion and tertiary oxonium ion. And parameters about the electronic structure, bondlength, energy of frontier orbital of these species were determined.

采用DFT中的B3LYP/6-311G++方法对四氢呋喃和环氧丁烷单体、仲氧鎓离子以及叔氧鎓离子进行了几何构型的全优化，确定了各个构型的电子结构、键长和前线轨道能量等参数，并运用前线轨道理论从微观层次上分析了四氢呋喃和环氧丁烷的阳离子均聚反应机理。

Another relevant oxygenate is ethyl-tertiary-butyl ether, which has increasingly replaced MTBE.

另一个相关的氧化是乙基叔丁基醚，这已日益取代甲基叔丁基醚。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷