查询词典 constant

Products include household, commercial, industrial air-conditioning and refrigeration equipment units, and the corresponding design and installation of air purification, constant temperature and humidity, low temperature refrigeration equipment and engineering.

产品范围包括家用、商用、工业空调和冷冻设备机组，并设计安装相应的空气净化、恒温恒湿、低温冷冻设备及工程。

Methods of testing China uplands cotton fibre fineness and maturity coefficient rapidly by constant pressure airometer is discussed.

1前言棉纤维细度和成熟度系数与纱线加工和性能之间存在十分密切的关系，许多科技工作者提出的由棉纤维性能预测其纱线性能的相关方程已得到应用［1～5］。

In 1220, to provide a constant supply of lay defenders of the church against the assaults of the Albigenses and other militant innovators, Dominic established the Militia of Jesus Christ and pledged its members to defend the church with arms and their possessions.

在1220名，以提供一个稳定供应奠定捍卫教会对殴打的比根斯派和其他激进的革新者，星确立了民兵的耶稣基督，并保证其成员捍卫教会与武器和他们的财物。

An algebraic expression consisting of one or more summed terms, each term consisting of a constant multiplier and one or more variables raised to integral powers.

多项式包含一个或更多总项的代数表达法，每一项都含有一个常乘数和一个或更多整幂的变量。

An algebraic expression consisting of one or more summed terms, each term consisting of a ''.'constant'.''''.'multiplier'.

多项式包含一个或更多总项的代数表达法，每一项都含有一个''。

An algebraic function field K with finite constant field is called a global functionfield.

具有有限常数域的代数函数域K被称为整体函数域。

The constant element scheme is adopted in the discretization of BIE, anda system of linear algebraic equations is obtained.

采用常单元方案对边界积分方程进行离散化，得到了问题的线性代数方程组。

Life's main struggle is the constant balancingact between acid and alkaline in the human body.

生活中的主要斗争，是不断在人体内酸和碱之间的平衡。

In this paper, through a series of experiments, two series of quaternary-ammounium Gemini surfactants were synthesized, namely the pair alkylene double quaternary ammonium salt surfactant m-s-m·2Br and the pair the alkylene double quaternary ammonium salt surfactant -s-·2Br. We has carried on the attribute with the infrared spectrum to its structure, and to affected the factor which the synthesis pair the alkylene double quaternary ammonium salt surfactant responded to carry on the discussion. We has discovered the synthesis pair the ethylene double quaternary ammonium salt surfactant m-2-m·2Br optimum condition: The bromo alkane and a tetramethyl ethylene diamine mole of ratio is 3.0: 1.0, makes the solvent by the ethyl alcohol, 80℃ under responds for 48 hours in the backflow temperature; Synthesis pair alkylene double quaternary ammonium salt surfactant 12-S-12 ·2Br optimum condition: 12 tertiary amine and 1, 3- propylene dibromide (1, 4- two bromines butane) a mole of ratio is 2.2: 1.0, makes the solvent by the ethyl alcohol, responds for 48 hours in the constant temperature 80 ℃ under backflow.

本文通过一系列的实验，合成了两个系列的Gemini型表面活性剂，即双烷撑双季铵盐表面活性剂m-s-m·2Br和双烷撑双季铵盐表面活性剂-s-·2Br，用红外光谱对其结构进行了表征，并且对影响合成双烷撑双季铵盐表面活性剂反应的因素进行了讨论，找出了合成双乙撑双季铵盐表面活性剂m-2-m·2Br的最佳条件：溴代烷与四甲基乙二胺的摩尔比为3.0：1.0，以乙醇作溶剂，在回流温度80℃下反应48小时；合成双烷撑双季铵盐表面活性剂12-s-12·2Br的最佳条件：十二叔胺与1，3-二溴丙烷(1，4-二溴丁烷)摩尔比为2.2：1.0，以乙醇作溶剂，在恒温80℃下回流反应48小时。

When such poetry was brought to England it was still being handed down orally from one generation to another, and the constant presence of alliterative verse , or consonant rhyme (today's newspaper headlines and marketing abundantly use this technique such as in Big is Better ) helped the Anglo-Saxon peoples remember it.

这类诗歌传入英格兰时，仍然是遵循口头继承的传统，辅音押头韵的大量存在也帮助了盎格鲁萨克逊民族记忆这些诗歌。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。