单级

There is no engineering reason why a 15W-40 multi-grade using the current best technologies would not perform at least as well as an SAE 30 mono -grade in almost any engine.

从技术的角度来说，采用了当今最先进技术的15W-40多级润滑油并不能在所有发动机中都表现出比SAE 30单级润滑油更好的性能

The nonperformance requirements for the propulsion system regarding the engine life and reusability, reliability, maintenance, and operability are stated.

阐述了单级人轨运载器对推进系统在重复使用性与寿命、可靠性、安装集成与维修性、可操作性等方面的需求。

Zhou Xiaochuan said there was a need to reset "the obsolescent unipolar world economic order".

周小川表示对"萎靡不振的单级世界经济秩序"进行重新调整是必要的。

A single stage amplifier was used outside the loop cavity to increase the output power, and the influence of amplification on laser quality was analyzed.

环形腔输出后加入单级光放大提高输出激光的光功率，分析了放大对激光性能的影响。

Common Stock and Warrants - A single class of common stock, par value $0.01 per share (the "Common Stock"), including sufficient shares to provide for

普通股和认股权证-以单级普通股，票面价值为每股0.01美元，包括足够的股份，为

One-rank steam refrigeration system is researched in theory. In the condition of necessary hypothesis and predigestion,a kind of clear、simple、stable arithmetic is adopted.

本文对稳定工况下的单级蒸汽制冷循环系统的工作特性进行了理论研究，经过必要的假设和简化，采用了一种明确、简单、稳定的稳态仿真算法。

Single-stage is not conducive to world peace and development, and runs counter to the interests of all peoples.

单级不利于世界的和平与发展，与各国人民的利益相悖。

It has a reasonably light single-stage pull that's well suited to this type of small plinking rifle.

它有一个合理的轻型单级拉那是很好的适合这种类型的小plinking步枪。

First of all, the dynamic characteristic of teeth is analyzed, then the dynamic model is established for single-stage gear transmission system.

分析了齿轮轮齿的动态特性，建立了单级齿轮传动系统振动的动力学模型，提出了理论渐开。。。

With the help of a single-stage Roots blower.

与单级罗茨鼓风机的帮助。

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。