查询词典 synthetic

Results the resolution and linearity of eucalyptol, camphor, synthetic borneol, menthol, methyl salicylate, cinnamaldehyde and eugenol were good with the recovery rate of eucalyptol at 98.7 %(rsd=1.1 %) camphor at 99.0 %(rsd=1.0 %), synthetic borneol at 99.4 %(rsd=0.8 %), menthol at 99.7 %(rsd=0.4 %), methyl salicylate at 99.6 %(rsd=0.5 %), cinnamaldehyde at 99.5 %(rsd=0.8 %), eugenol at 99.5 %(rsd=0.9 %), respectively.

结果在该色谱条件下桉油精、樟脑、冰片、薄荷脑、水杨酸甲酯、桂皮醛、丁香酚的分离度和线性关系良好，平均回收率（n＝6）分别为98.7 %（rsd＝1.1 ％）、99.0 %（rsd＝1.0 ％）、99.4 %（rsd＝0.8 ％）、99.7 %（rsd＝0.4 ％）、99.6 %（rsd＝0.5 ％）、99.5 %（rsd＝0.8 ％）、99.5 %（rsd＝0.9 ％）。

Based on the concept of averaging electromagnetic field, the optical constants of Goodwin synthetic ash, Chinese Qitaihe coal ash and Russian ash Br-1 were calculated by Maxwell-Garnett and Bruggeman effective medium theory. Computational results show that, for the synthetic coal slag, the optical constants estimated by EMT consist with the experimental values, but for the coal-ash produced in combustion, the optical constants estimated by EMT using industrial analytical species deviate far from the experimental values.

基于电磁场平均的概念，利用Maxwell-Garnett和Bruggeman有效介质理论分别对Goodwin人工合成灰渣、中国七台河矸石煤灰、俄罗斯褐煤灰Br-1 3组煤灰的光学常数进行计算，结果表明，人工合成灰渣光学常数的有效介质理论值与实验值吻合，而利用工业分析成分，燃烧生成煤灰光学常数的有效介质理论值与实验值有较大偏差。

According to the synthetic methods study of the quinolones, it is found that the synthetic method of parent ring is of wide use by the condensation from α-substituted aryl formyl-β-substituted aminoacrylic acid and the inner molecular nucleophilic substitution reaction, which is almost suitable for the quinolones preparation of different rings or different substituted groups in 〓-position.

然后，对其合成方法进行了归纳，发现：由α-取代芳甲酰基-β-取代氨基丙烯酸缩合，经分子内亲核取代反应形成喹诺酮母环的合成方法用途非常广，几乎适用于所有不同环系或〓-位是不同取代基的喹诺酮类衍生物的制备。

The high-power system including main circuit, the charging and discharging circuit of synthetic circuit test system, and the principle of charging and discharging for current supply using electrolytic capacitor is presented. At the aspect of circuit breaker control, the advanced permanent magnetic actuator is used and analyzed in this paper, including the precision computation and using in synthetic circuit. The trigger circuit of voltage supply is designed, and the intelligent control is used to trigger the igniting gap. And the integraph based Rogowski coil is designed and employed the intelligent detection of breaking current.

强电系统介绍了合成回路试验系统的主电路及其充放电电路，讲述了电流源采用电解电容器的充放电原理；断路器控制方面，采用当前比较先进的永磁操动机构，并对永磁机构的原理、精度计算和在合成回路中的应用做了详细地分析；设计并制作了电压源点火回路，对球隙点火进行智能控制；在智能检测开断电流方面，设计并制作了与Rogowski线圈相配合的积分器。

Firstly, through analysis for the synthetic mechanism of lactide and according to improve the condition of synthetic process the factors related were studied in detail.

首先，从改善合成丙交酯反应的条件入手，通过对丙交酯合成反应的机理分析，对反应过程中催化剂用量、种类、脱水温度、时间、压力、解聚温度、时间、压力等做了详细的研究，得出最佳的合成条件和工艺过程。

The experimental group with Synthetic Moschus in 8 month were fed with Synthetic Moschus two weeks before being killed.

8月造模加人工麝香饲养组动物在处死前喂以人工麝香2周。

The synthetic normal error model, the synthetic error evaluation model and the error compensation model in the system have been built.

它与凸轮CAD/CAM系统一起组成弧面分度凸轮制造质量保证体系的集成质量控制系统。

So this paper selects national debts as our studying objects. By using principal component analysis method to study the zero coupon yield curve, we find that the movement of the curve yield can be simulated by two factors mostly, that is parallel shift and rotation. Then we quantitative them and get "synthetic parallel shift" and "synthetic rotation".

因而，本文选择了国债作为研究对象，对国债的即期收益率曲线进行主成分分析的结果表明，收益率曲线变动的总体方差绝大部分来自于两个因子的贡献，即水平因子和倾斜因子，本文对这两个因子进行量化处理，得到"综合的平移"和"综合的倾斜"，并在此基础上建立了两综合因子法对债券组合的VaR估值模型。

The results show that the discharge and cooling stages of sparkjet were simulated by computational method. The instance energy input can produce the condition of high pressure and temperature in the actuator, which induce the forming of synthetic jet. With the increment of the input energy, the velocity of the synthetic jet could be increased to the supersonic state. Under the periodic energy input, the distribution of the sparkjet velocity on the nozzle is non-sinusoidal. And the discharge velocity of jet is much larger than the suction velocity of the flow from environment.

计算结果表明：采用本文的计算方法可以模拟出火花型激励器喷射、吸入的工作阶段；电火花瞬间能量的输入产生了腔体内的高温、高压环境，从而诱发合成射流的形成；当激励能量增加，激励器产生的合成射流速度增加，可达到超声速状态；周期性激励下，火花型合成喷喷口处的轴向平均速度随时间不是正弦分布，且喷射过程的最大速度要远远大于吸收过程的最大速度。

For a series spatial and planar mechanism synthesis, synthetic equation set can be established according to the kinematics requirement and characters of the mechanism. Then trigonometric functions are rationalized so as to create a polynomial system =0 , and the polynomial solution=0 is obtained with synthetic elimination method.

对于平面机构与空间机构的各类综合问题，根据各种机构的运动综合要求和机构的特点，建立机构的综合方程组，然后通过三角函数的有理化，将综合方程组化成多项式方程组=0，并采用综合消元法求得其多项式解=0，进而求得待定的机构参数。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。