A model asphalt had been separated into four components: asphaltenes, saturates, aromatics and resins. 前言:用四组分法将沥青分为饱和分、芳香分、胶质、沥青质。
Ground water is the water that saturates the pores and cracks in soil and rock beneath the land surface. 地下水是充满在地面底下土壤与岩石的孔隙中的水。
The Port of Yangon, the principal trading centre of Myanmar, saturates in the nested area. 仰光港作为缅甸主要的贸易中心,位于嵌套区域。
The resins of Shengli vacuum residue were blent with saturates, aromatics from Shengli vacuum residue and paraffin from SSOT hydrogenation residue. 将胜利减压渣油中的胶质与饱和分、芳香分以及减压馏分油加氢裂化(SSOT)尾油中的石蜡进行调合。
It was proposed that the hydrotreating process could be optimized by reducing the aromatics content in feedstock, which could result in high saturates in the lube base oil product. 适当降低进料中的芳烃含量,可以优化加氢处理过程,提高基础油中的饱和烃含量,并使芳烃和环烷烃以单环烃为主,获得较高粘度指数的润滑油基础油产品。
There are two different points of view on whether current relay operates correctly or not, when CT saturates. 电流互感器(CT)饱和时,电流继电器能不能正确动作,一直存在二种载然不同的观点。
A solid extraction/ gas chromatography method was established for the determination of the contents of saturates and aromatics in diesel fraction prior to cutting the fraction from wide-boiling cuts. 建立了不经馏分切割、直接测定宽馏分混合油样中柴油馏分的饱和烃和芳烃含量的固相萃取/气相色谱方法。
The asphalt was divided into four fractions by alumina containing 1% water used as adsorbent liquid adsorption chromatography with normal n-heptane precipitation, they were saturates, aromatics, resins and asphaltene. 采用正庚烷溶剂沉淀和1%H2O-Al2O3吸附色谱法将沥青分成饱和分、芳香分、胶质和沥青质4个组分。
As the result of thermal pyrolysis and condensation, the contents of asphaltene and saturates increased, the aromatic content decreased, and the resin content only changed a little. 结果表明,在热反应中,由于裂解和缩聚反应的共同作用,使渣油的沥青质和饱和分含量上升,芳香分含量下降,胶质含量变化不大;
By use of this method, the mal-operation area of any differential protection criteria is visualized when current transformer saturates due to the large through current induced by external fault. 利用这种分析方法,可以直观地得到:对于任意一种特定的判据,当外部故障的穿越电流造成电流互感器饱和时,判据的误动概率;
Since the early eluting components from the pre-column, and the aromatics and heavier saturates from the analytical column are all directed to the same flame ionization detector through a T piece, a factor corrected normalization method can be applied for quantitation. 从预柱上先流出的组分和从分析柱上后流出的组分先后通过微型三通进入同一个FID检测器,因此可用校正响应因子归一化法进行定量分析。
The influencing factors in the determination of hydrocarbons ( saturates, aromatics, resins) in heavy oils by thin layer chromatography/ flame ionization detection ( TLC/ FID) were investigated. 对应用棒状薄层色谱/氢火焰离子化检测器(TLC/FID)测定重油烃族组成(饱和烃、芳烃、胶质)时的影响因素作了探讨。
It should be our working emphasis hereafter to improve saturates content in base oil, remove arene and sulfur nitrogen compound with hydrogenation technique, so as to improve the receptivity of base oil on additive. 今后的工作方向应是用加氢工艺以提高基础油中饱和烃含量,除去芳烃及硫氮化合物,从而改善基础油对添加剂的感受性。
In this study petroleum resids and the thermal conversion products of the resids and of resid fractions were separated by solubility and clay adsorption into five pseudocomponents: saturates, aromatics, resins, asphaltenes, and coke. 在研究中,通过可溶性和粘土吸附能力把渣油以及渣油、渣油馏分的热转化产物分离成五种假组分:饱和分、芳香分、胶质、沥青质和焦炭。
Biomarks in the saturates were analyzed with GC-MS. Model compound experiments indicate that no chemical reactions occur during the CS_2/ NMP extraction between the solvent and sample extracted. 模型化合物的实验研究表明,超强溶剂CS2/NMP抽提是在温和的条件下进行的非化学降解过程,没有化学共价键的开裂。
Not mainly the ageing of resins and asphaltenes but that of saturates and aromatics cause the ageing of asphalt. 沥青热氧老化的原因主要是饱和分和芳香分的氧化,而不是胶质和沥青质的氧化。
More saturates exist on surface of asphalt. 沥青表面的饱和分含量比本体多。
The storage modulus obtained from rheological measurements reveals that the strength of the hydrogels increases with increasing of the irradiation dose and saturates at doses above 27 kGy. 通过高级流变仪(ARES)对水凝胶弹性模量的测试显示,随吸收剂量的增加,凝胶强度会相应增大,但在27kGy以上出现饱和。
As the message market saturates and dull gradually, all the time hiding WAP business has begun to surface slowly, watched by the market. 随着短信市场逐渐饱和和平淡,一直潜藏着的WAP业务开始慢慢露出水面,受到市场的亲睐。
The TLC-FID ( Thin Layer Chromatography-Flame Ionization Detector) analysis indicates that the asphaltenes in asphaltic sands was transformed into resin and saturates. The yield of the degradation product is 11.7%. TLCFID分析证明,沥青砂中沥青质的减少主要生成胶质和饱和烃,降解产物的得率为11.7%。
Antithesis is an important element in Chinese stylistic system. It is a kind of linguistic expression which describes people's cognition of the world and then saturates it into elegant culture and folk culture. 对偶是汉语语体系统和文体系统中的重要构成元素,是人们把对世界的认识摹写出来又渗透到高雅文化与民俗文化之中的一种语言表达式。
As an overall and crossing subject, system science saturates all fields. 作为一门综合性、横断性学科,系统科学具有向一切领域渗透的总趋势。
Actuator saturation is an unavoidably nonlinear factor in robot systems, and every physical actuator has inherent constraints. When the input signals exceed such limits, the actuator saturates, causing the closed-loop performance to deteriorate and in the extreme case, to even lose stability. 驱动器饱和是机器人系统不可避免的非线性因素,每个物理驱动器都有内在限制,当输入信号超过这一限制,饱和发生,导致闭环系统性能恶化。极端情况下,甚至丧失稳定性。
Meanwhile, the compare with the conventional percentage restraint principle and product-restraint principle have proved that the new criteria have a good performance when the transformer saturates and when the transition resistance have a big value. 同时,通过跟传统比率制动判据和标积制动判据的比较分析得出新差动保护原理在抗电流互感器饱和与抗过渡电阻能力等问题上都具有明显的优越性。
High speeds can be conveniently obtained; however, some drawbacks still remain. The main shortfall of a linear motor, whether it be synchronous or inductive, short stator or long stator, is the magnetic saturation of its ferromagnetic cores which ultimately saturates generation of thrust. 然而,这种结构的直线电机仍然存在一些不足之处:无论是同步电机还是感应电机,短定子或是长定子直线电机,铁磁芯的饱和最终会限制最高推进力。
The four components tests show that asphaltene, colloid increase and saturates, aromatic decrease with the aging time extended. 四组分的测试表明,随着老化时间的延长沥青质、胶质含量逐渐增大,饱和分、芳香分含量逐渐减少,从微观上说明了老化的原因是由于轻质油分挥发及转化为重质油分。
The s-wave scattering length diverges at certain magnetic field, while the cross section saturates the unitary limit. 在特定磁场下,粒子间的s波散射长度会趋于无穷大,散射截面会满足幺正极限。