查询词典 composition factor

Objective: To determine the amino acid composition and isoelectric point of porcine platelet-derived growth factor.

摘要目的：测定猪血小板衍生生长因子的氨基酸组成和等电点。

The solvent extraction of roselle seed oil was performed by a single factor test and better process conditions were determined. The fatty acid composition of roselle seed oil was also analyzed.

采用单因素实验，对玫瑰茄籽油的溶剂提取法进行了研究，同时分析测定了玫瑰茄籽油的脂肪酸组成。

The characteristic of BMS silica mesostructure and the effect of various synthesis factor (including ammonia/silica molar ratio, composition concentration variation, surfactant alkyl chain length, auxiliary organic molecules such as trimethylbenzene, catalyst structure and properties, solvent and cosolvent volume and its polarity, aging and drying conditions and postsynthesis hydrothermal treatment and so on) on the resultant BMS silica structure and properties were assessed using a series of analytical techniques such as XRD, SEM, TEM,〓Si MAS NMR, TG-DTA and N〓 adsorption measurements.

结果显示BMS二氧化硅分子筛是由大量封装胶束的纳米二氧化硅颗粒（约为20-40nm）堆积形成的聚集体，其双介孔分布中较小的介孔起因于颗粒内部表面活性剂模板形成的介孔，我们称之为骨架介孔。它类似于我们在MCM-41中看到的介孔，可通过改变表面活性剂胶束的尺寸而在2.56-3.65nm的范围内进行调节。

The medium composition and some fermentation parameters were studied by cross test and single factor experiments. The optimal conditions are as flows: Tryptone 0.76 %, Bean powder 1.0 %,initial pH 8.0, temperature 28 ℃, inoculation quantity 8 % and loading volume 30 %. Under optimal conditions, the maximum yield of biomass and microbial lipids reached 29.8 g/L and 11.7 g/L, respectively, which was 2.59 times and 2.05 times of those cultured in the original medium, after 9 days fed-batch co-fermentation in shake-flask.

采用单因子和正交实验对培养基组成和发酵条件进行了优化，结果表明，诱变菌在温度28 ℃，pH 8.0，接种量8 %，装液量30 %，蛋白胨0.76 %和豆粕1 %，分批补糖的最优发酵条件下发酵9 d，生物量和菌体油脂积累量分别达29.8 g/L和11.7 g/L，较出发菌提高了2.59倍和2.05倍，同时原料糖利用率达到99.4 %。

to overcome some disadvantages of low precision,slow dynamic response,unconvenience parameter adjust existing in high-power ultrasonic power supply,it applies intelligent control composed of 8089 microcontroller is proposed.the article introduces the modulation principle of spwm,the composition of high-power ultrasonic power system applying the single chip computer to realize the soft of phase lock loop,the mechanism of work and the software thought.it realizes the low loss,high power factor and the whole performance of the circuit is developed.

摘 要：针对目前大功率超声波电源采用模拟控制电路存在精度低、动态响应慢、参数整定不方便等缺点，采用单片机8089组成智能控制的超声波电源系统。提出了基于spwm技术的双闭环控制策略和应用单片机实现软锁相的工作原理和软件思想，使整个超声波电源实现了低损耗、高功率因数，优化了电路的整体性能。

to overcome some disadvantages of low precision,slow dynamic response,unconvenience parameter adjust existing in high-power ultrasonic power supply,it applies intelligent control composed of 8089 microcontroller is proposed.the article introduces the modulation principle of spwm,the composition of high-power ultrasonic power system applying the single chip computer to realize the soft of phase lock loop,the mechanism of work and the software thought.it realizes the low loss,high power factor and the whole performance of the circuit is developed.

寂寞网民何时&回家吃饭&？基于单片机8089的超声波电源控制技术的研究。裴玖玲屈百达□摘要：针对目前大功率超声波电源采用模拟控制电路存在精度低、动态响应慢、参数整定不方便等缺点，采用单片机8089组成智能控制的超声波电源系统。提出了基于spwm技术的双闭环控制策略和应用单片机实现软锁相的工作原理和软件思想，使整个超声波电源实现了低损耗、高功率因数，优化了电路的整体性能。

Chapter two announces that outer space has a characteristic of a society---space entity via rather systematic discussions on the concept, systematic composition, characteristic and influence factor of outer space of high residential buildings, thus brings us deep , overall knowledge to the intension , essence and characteristic of the outside space of high residential building, turn back the superficial and one-sided understandings fettering us for long.

第二章通过较为系统的论述高层住宅外部空间的概念、系统构成及特征、影响因素等内容，揭示了外部空间所具有的社会---空间统一体特征，从而使我们对高层住宅外部空间的内涵、本质和特征具有深刻、全面的认识，扭转长期以来束缚我们的肤浅片面的认识。

Liu Yan's major paintings were abstract in both significative and psychological factors, about which she neither sedulously made an explanation nor wangled in vision. Her interest in composition were hidden in actual observation of facts or events that brought the affecting factor to her form of expression. Though we might unable to describe whatever she exactly applied paint on canvas we would be moved by it. she found her own artistic way of conveying in condition to which as if we experienced it in person.

刘艳的作品是一种象征的心理的抽象，她没有刻意地说明，也没有视觉的取巧，她把艺术的追求隐藏在生命的经验和生存的状态中，使她的形式具有感人的因素，我们可能无法描述她到底画什么，但我们会被她感动，她的状态也是我们共同的状态，但她用她的艺术语言表达出来了，我们感同身受。

The harvesting cost by hand is 6 times higher than that by machine harvester, so machine harvesting of sugarcane is a vital factor to reduce the production and improve international competitiveness. As an important composition part of sugarcane harvester, the mechanism capability influence windrowing quality and working efficiency directly.

作为甘蔗收获机的一个重要组成部件，夹持输送装置性能好坏直接影响到甘蔗输送铺放质量和整机工作效率，因此研究夹持输送装置的工作机理，探索不同运动参数和结构参数下的夹持输送质量、铺放质量和功耗大小，为夹持输送装置和甘蔗收获机械的设计提供依据，具有重要的实用价值。

Meanwhile, determined effect of the composition in pre-plating bath on tin coating thickness, surface microtopography and coating binding power throught single factor experiment of pre-plating solution.

同时通过对预镀液的单因素实验，确定了加入预镀的化学镀锡工艺各种成分对厚度、表面型貌以及镀层结合力的影响。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失