首选的

The reflecting telescope, pioneered by Isaac Newton in the 17th century, later became the instrument of choice because of its use of mirrors, which could be constructed successfully at much great sizes than the glass lenses used in refracting telescopes.

反射望远镜是艾萨克·牛顿于17世纪首先倡导的，后来由于望远镜上反射镜的应用面成为了一种首选的设备，比起折射望远镜里使用的玻璃透镜来，它能够成功建造出尺寸大得多的望远镜。

Essential. Although in fact these are the "wrong" type of glass to use for tasting cognac: the preferred glass is a sherry copita, a short-stemmed glass with a wide "belly" tapering to a narrower mouth. Choose a snifter between 8 and 10oz (240 – 300ml).

主要的鸡尾酒杯，实际上是"错误的"饮用干邑的杯子类型，首选的杯子应是一种雪利酒杯--短杯茎并且大"肚皮"逐渐向杯口变窄，选择容量在8-10盎司(240-300ml)的品香杯。

In many practice problems such as to know the resonnance frequency of a structure and to know the critical value for the stability of a dynamical system,often need to compute the eigenvalues of a symmetric matrix. The chief method to compute the eigenvalues of a symmetric matrix is first to transformate the matrix to a symmetric tridiagonal matrix similarly and orthogonally, then to use the QR method with shift to the symmetric tridiagonal matrix.

很多实际问题，如求结构振动的固有频率，动力系统稳定性的临界值等常常归结为计算对称矩阵的特征值，而首选的计算方法是先把该矩阵正交相似变换成一个对称三对角矩阵，再对这个对称三对角矩阵用带位移的QR方法。1968年J.H。

Inkjet cards and membership cards making machine is a non-contact business card printing and membership card-making machinery, the printing does not work and the contacts the packaging does not have a plane quality requirements, Business card printing and membership card production speed, high efficiency, the future wine box business card printing and membership card produce better, so in commodity production date printed aspect is the preferred main device.

喷墨制卡和会员卡制作机是一种否隔绝式制卡和会员卡制作板滞，印制时不与被印物隔绝，差包装物操纵立体质量的功矮请求，制卡和会员卡制作速率迟，成果矮，差包装此后的酒盒制卡和会员卡制作具有较好的适答性，所以在商品的出产日期等印制方背是首选的次给摆设。

Essential. Although in fact these are the "wrong" type of glass to use for tasting cognac: the preferred glass is a sherry copita, a short-stemmed glass with a wide "belly" tapering to a narrower mouth. Choose a snifter between 8 and 10oz (240 – 300ml).

主要的鸡尾酒杯，实际上是&错误的&饮用干邑的杯子类型，首选的杯子应是一种雪利酒杯--短杯茎并且大&肚皮&逐渐向杯口变窄，选择容量在8-10盎司(240-300ml)的品香杯。

By studying the work principal of sabsoilers and field experiment, it was demonstrated that among subsoilers, function of bulk subsoilar is superior to else types subsoilers. The bulk subsoilor...

通过对土壤深松机具的工作原理及其在田间的试验研究，结果表明：在土壤深松机具中，全方位深松机优越于其它类型的深松机具，应是我国保护性耕作中首选的优良机型。

The test results and short term production practices all shown that inertia cone crusher have some characteristics such as high reduction ratio,less ultra-crush,grading fraction and shape of grain appropriation for silica brick process,high output,lower energy consumption and good adaptability for silica with all kinds of hardness and should be pref...

惯性圆锥破碎机是一种新型节能细碎设备，对其在硅砖生产中使用的可行性进行了较系统的研究，经过试验和短期生产实践证明，该设备具有破碎比大、过粉碎现象少、产品粒度组成合理、颗粒形状适用且产量高、能耗低特点，对各种硬度的硅石具有很好的适应性，是硅砖生产应当首选的粉碎设备。

The test results and short term production practices all shown that inertia cone crusher have some characteristics such as high reduction ratio, less ultra-crush, grading fraction and shape of grain appropriation for silica brick process, high output, lower energy consumption and good adaptability for silica with all kinds of hardness and should be preferred crushing equipment for silica brick production.

惯性圆锥破碎机是一种新型节能细碎设备，对其在硅砖生产中使用的可行性进行了较系统的研究，经过试验和短期生产实践证明，该设备具有破碎比大、过粉碎现象少、产品粒度组成合理、颗粒形状适用且产量高、能耗低特点，对各种硬度的硅石具有很好的适应性，是硅砖生产应当首选的粉碎设备。

Set a pot of both the traditional, but also can replace the furnace of alcohol one pot, you can use the one-time pot, use more health meals, factory production tables with electromagnetic energy efficiency, environmental protection, style and diverse, safe, reliable, easy to use , And other characteristics of the modern family is the first choice of multi-functional furniture, dishes City is the necessary equipment.

既有传统的一桌一锅，也有可代替酒精炉的一人一锅，可以使用一次性火锅，使用餐更卫生，本厂生产的电磁桌具有高效节能、绿色环保、款式多样、安全可靠、使用方便等特点，既是现代家庭首选的多功能家具，有是火锅城必备的设备。

The Ballarat project unfortunately will not fit our preferred investment criteria.

不幸的是项目的巴拉兰特不适合我们的首选的投资标准。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。