查询词典 first-rate

This paper first presents the characteristic function of matrix Beta distribution and then obtains the first two moments through matrix differentials.

首先给出了矩阵Beta分布的特征函数，然后利用矩阵的微分得到了矩阵Beta分布的前二阶

Beyond all question, Shanghai Otis becomes the supplier of highest quality products and services, the first choice of customers. Established in Shanghai, relying upon advanced technology, it will provide customers with excellent OTIS products and global first class services.

上海奥的斯电梯公司无可争辩地成为最高质量的产品和服务的供应商，并且毫无疑问地成为客户的第一选择，立足于上海，依托先进的技术，为客户提供卓越的奥的斯产品及世界一流的服务。

To breed grafting watermelon Zhuang Miao, terminal of promotion of farming ability of terminal of farming ability promotion and peaceful wave city is in county of peaceful 2005 sea jointly town of street of Ning Hai's head of a county undertook inside the grow seedlings canopy of Shao Xingyong of village of palace of empress or imperial concubine of the first rank " in mother " the card is compressed model matrix nutrition earthen bowl Ci Xi, summarize test result as follows now. Earthen bowl of nutrition of the compression that 1 experiment process suits grafting watermelon grow seedlings to use matrix has 6cm × 2.5cm or 5cm × 2.2cm, what this we choose is 6cm × 2.5cm, smooth squeezing ramming should make seedbed copy first when grow seedlings, seedbed upper berth lies between water to use deep plastic film, in order to prevent moisture leakage and root system next plunging into, make sure nutrient earthen bowl is even and bibulous, filmy all around left and right sides of tall 6cm of bed a low bank of earth between fields, avoid prediction of a person's luck in a given year of moisture side direction.

为了培育嫁接西瓜壮苗，2005年宁海县农技推广总站和宁波市农技推广总站共同在宁海县长街镇娘娘宫村邵兴永的育苗棚内进行了"中慈"牌压缩型基质营养钵(慈溪市中慈生态肥料有限公司生产)和常规塑料钵育苗对嫁接西瓜秧苗素质影响的对比试验，现将试验结果总结如下。1试验过程适合嫁接西瓜育苗用的压缩型基质营养钵有6cm×2.5cm或5cm×2.2cm，这次我们选用的是6cm×2.5cm，育苗时要先将苗床底整平压实，苗床上铺隔水用厚塑料薄膜，以防止水分渗漏和根系下扎，保证营养钵均匀吸水，薄膜四面床埂高6cm左右，防止水分侧向流失。

Then, it is gradually decreased from first bicuspid to second bicuspid, first molar, which are 3.96mm, 3.62mm and 2.95mm, respectively.

上下牙列从尖牙向后，牙尖高度值和托槽粘贴高度值呈逐渐减小的趋势且依次减小约0.5mm。

Of the first oxidation stage of biliverdin for the first time, and found that the intermediate reactions existed during the further oxidation process of the oxidized product of biliverdin, and proposed a ECECE mechanism for the whole oxidation reactions.

发现了胆绿素氧化反应产物再氧化的中间过程及胆黄素的氧化反应，均为首次报道。并提出了胆绿素氧化的ECECE反应机理。

This lesson is compulsory curriculum standards of mathematics textbooks under the first year of the fifth element "by Canada and" the first class, is a double-digit increases the number of binary adder.

本节课是义务教育课程标准实验教科书数学一年级下册第五单元《加与减》的第一课时，内容是两位数加一位数的进位加法。

The first part of this thesis is basic on the generalized Hamming weights of linear codes over rings and arranged as follows: In section one, we first introduced the definition of generalized Hamming weights and weight hierarchy over binary field GF (2) and its extension to nonlinear codes over GF (2) and linear codes over rings.

本文的第一部分就是围绕环上线性码的广义Hamming重量这个课题展开的，主要内容如下：第一节，首先介绍了GF(2)上线性码的广义Hamming重量和重量分级的概念，以及这些概念是如何被推广至非线性码及环上的线性码上的。

Birdwatchers' networking system first came to the attention of the nation in l989, when a birdwatcher caught sight of the first Vermivora chrysoptera — a golden-winged songbird from North America — to be seen in Britain .

1998年，当一个观鸟者在不列颠发现第一只 Vermivora chrysoptera—一种来自北美的金翅鸣鸟，观鸟者网络系统开始受到全国的关注。

Botulinum toxins were first researched in the late 1960s to treat neurological disorders and for that otox were first approved by the FDA in 1989 to treat eye muscle disorders like blepharospasm, uncontrollable blinking, and strabismus, crossed eyes.

肉毒毒素的研究，首次在六十年代后期治疗神经系统疾病，并为此otox首次核准由美国食品暨药物管理局在1989年治疗眼部肌肉疾病如眼睑痉挛，无法眨眼，斜视，眼划线。

Botulinum toxins were first researched in the late 1960s to treat neurological disorders and for that otox were first approved by the FDA in 1989 to treat eye muscle disorders like blepharospasm, uncontrollable blinking, and strabismus, crossed eyes and even for wrinkles.

肉毒毒素的研究，首次在六十年代后期治疗神经系统疾病，并为此otox首次核准由美国食品暨药物管理局在1989年治疗眼部肌肉疾病如眼睑痉挛，无法眨眼，斜视，越过眼睛，甚至皱纹。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐