first的例句大全

The North Asia area may be divided into three first-rank tectonic units: the Siberia continental platform, the Verkhoyansk-Kolyma orogenic belt and the Centra-Asian orogenic belt. The second-rank tectonic units, including nuclei, fold belts and blocks, are subdivided in this study.

将北亚地区划分成西伯利亚地台、维尔霍扬斯克-科雷马造山带和中亚造山带三个一级构造单元，根据陆核、古褶带、地块的概念进行了二级构造单元划分。

We crossed the Continental Divide for the first time on a cool morning.

在一个凉爽的早晨，我们第一次越过大陆分水岭。

The continuum hypothesis is the first of the famous 23 problems by Hilbert.

连续统假设是Hilbert著名的23个问题的第一个问题。

But the first new male contraceptive to market may not be hormonal at all.

但首例推向市场的男性避孕药还全然不是荷尔蒙药。

Between 1980 and 1982 there were 542 singleton breech presentation, of which 254 delivered by cesarean section ( 46.86%) Social factor was the first indication and contracted pelvis came the next.

本文回顾分析我院1980～1982年3年中542例单胎臀位的分娩情况，其中剖腹分娩占46.86%，以社会因素为适应证占38.98%，骨盆狭窄次之。

The regulation of the risk-bearing in our country's "contract law" is divided into two respects: First, how to define the risk-bearing when the party don't break a contract;

我国《合同法》有关风险负担问题的规定，大的方向来看分为两方面：一是当事人未违约时如何界定风险负担问题；

Among all controllable costs in an enterprise, wage costs are in first place, this is very easy to understand.

在一家企业的可控成本中，工资开支排在第一位，这个很容易理解。

This paper describes for first time the pasteurellosis of swine infected by a convalescent carrier man who acted as the source of infection in the summer months of 1983, this disease occurred in three herds of gilts reared by three professional households respectively in the suburbs of Sanming.

本文首次报道了一起由巴氏杆菌感染恢复期带菌人作为传染源引起的猪巴氏杆菌病的爆发。这次爆发于1983年夏季，发生在三明市郊的三个专业户的小母猪群中。

To analyses foundation protects, the industrial adjustment, the ecology pattern optimizes, the spatial pattern reorganization, completes the sustainable development research in the convective region base on the first two chapter.

第三章，在前两章分析的基础上对流域进行用地保护、产业调整、生态格局优化、空间格局重组，完成可持续发展研究。最后总结全文。

The first kind of rainstorm is related to symmetry instability ( SI), the second to convective stability ( CI), and there was heavier rainfall in these two kinds of rainstorm.

第一类暴雨与对称不稳定有关，第二类暴雨与对流不稳定有关，这两类暴雨雨量较大；

The structural parameters of the first and the second coordination shell in the hydrated rubidium and sulfate ions have been obtained by refining the geometric model.

由几何模型的精修得到了溶液中阳离子和阴离子第一、二水合层的结构参数。

Household deposits dropped last October for the first time since May 2001, as the bull run in the stock market began to gather steam.

去年10月，随着股市的牛市行情全面展开，中国居民户存款出现自2001年5月以来的首次下降。

The first electrostatic color copier was released by Canon in1973.

第一静电彩色复印机释放了佳能在1973年。

This paper establishes distributed knowledge coordination center by Meta-System theory in intelligent engineering and explains its realization process for the first time.

首次把智能工程中元系统理论用于知识供应链模型中分布式异地知识协调中心的建立，并阐述其具体实现过程。

The hydration number of Li ion decreases with increasing concentration, but this is compensated by the increasing number of Li+ Br-contact ion pairs, and the coordination number of the first coordination shell of Li ion keeps approximately unchanged.

随浓度增加，锂离子的水合数量呈减少趋势但同时又从Li+-Br-接触离子对的数量增加中得到补偿，而Li离子的第一配位壳层的配位数量保持不变。

The coordination atom of the first coordination shell of La in REE-BPS was oxygen whose coordination number was 6 and the average distance among the atoms was 2.52, and the second shell was sulfur that were 3 and 2.91 respectively.

REE-BPS中La原子的第一配位层是六配位的氧原子，平均键长距离2.52A；第二配位层是三配位的硫原子，平均距离2.91A。

The influence of ion charge on the Helmholtz energy of fluid mixtures was taken into account by considering the interactions between the charge of ions located in the first coordination shell and the dipole or induced dipole of the central solute molecule.

为计入离子电荷对流体混合物Helmholtz自由能的影响，作者考虑了位于中性分子的第一配位圈中离子的电荷与此分子的诱导偶极和偶极的相互作用。

Clinical and Electroencephalogram Analysis of Cases with Convulsive Seizure as First Symptom

以抽搐样发作为首发症状的临床与脑电图分析

The following conditions are required for the free convertibility of the rmb: first, a strong national strengthen;

人民币的自由兑换是有条件的：第一要有很强的国力；

Wheel-speed regulating change box Whether in the first case or in the second the center of the convolute bedding is commonly marked by a sand "ball" and sometimes there is one or a few sluicing holes in the center.

轮变速箱，砂轮变速箱无论是前者、还是后者，中心多为砂核，有时中心有一个或多个泄水孔。