查询词典 Q

According to the forward and inverse results of synthesi zed seismic records, our Q filtrating operator of the depth domain is consis tent with the seismic laws in the absorbing media, which not only considers the effe ct of the media absorbing of the waves, but also fits the deformation laws, name ly the frequency dispersion of the body wave.

在深度域的Q滤波算子符合地震波在衰减介质中的传播规律，不仅考虑了介质吸收对地震波振幅的影响，而且还保证了所造成的波形畸变满足因果规律，即地震体波具有某种频散性质。

This can be removed by using a Q-tip or an orangewood stick with a cotton tip.

这能藉由使用 a Q 被移动-用棉花顶端的顶端或一根橙木根。

Theorem3 G is a formal set p~n q of p -order subgroup of solvable simple group meeting, P is Sylowp -subgroup of G .

定理3设G是有正规p -子群的p~n q阶可解次单群， P是G的Sylowp -子群。

The Q, or quality factor , of an oscillatory system is a very widely used term

一个振动系统的Q，即质量因子，是一个应用极广的概念。

The company has passed ISO9000 quality management system certification and OTIS Elevator Q-plus three-level certification.

公司已通过ISO9000质量管理体系认证和OTIS电梯Q-plus三级认证。

It was shown that TAPP and its metalloporphyrin complexes all had good photoconductivity. The surface photovoltage response in tensity of Soret band and Q band were enhanced with an external positive electric field and weakened with a negative electric field, and possessed the characteristic of p-type semiconductor.

并研究了这些卟啉化合物在不同外加电场条件下的表面光电压谱，结果表明，TAPP及其金属配合物都具有良好的光电性能，且其Soret带与Q带的光伏响应强度随外加正电场光伏响应强度的增加而增强，随外加负电场光伏响应强度的增加而减弱，具有P-型半导体的特征。

In the figure, AB and CD are 2 parallel lines touching the circle at P and Q respectively.

图中，AB 和 CD 为两条平行线并分相切一圆於点 P 及 Q。

For the first time, this study conducted a series of field sampling in multiple locations over several years and demonstrated that the B and Q biotypes first invade areas with high frequency of transport through human movement of plant materials, and then rapidly spread into surrounding areas and displace indigenous genotypes, and in parallel with displacement significant changes in sex ratio occurred in the mixed populations. Crossing experiments demonstrated that in the B. tabaci species complex there are many genetic groups that are completely or nearly completely isolated in reproduction. Apart from behavioural mechanisms, difference in host plant suitability and insecticide susceptibility between whitefly biotypes may also play important roles in the displacement of indigenous whiteflies by alien whiteflies in Zhejiang.

本研究首次以一个地理区域内广泛系统的野外调查数据证实，B型和Q型烟粉虱首先通过花卉苗木调运入侵交通较为发达的地区，然后迅速向周边扩张并取代土著烟粉虱，同时入侵取代过程伴随着混合种群中性比的变化；杂交试验证明烟粉虱复合种内存在多个生殖上隔离或基本隔离的遗传群；B型烟粉虱在浙江省内迅速取代土著烟粉虱，除行为机制外，生物型之间寄主适应性和药剂敏感性等方面的差异也可能在此过程中起着重要作用。

Three reference current detecting methods are presented for single-phase active power filter, i.e. fundamental current detecting method based on parallel resonance of passive LC filter, fundamental current detecting method based on switched-capacitor filter, harmonic current detecting method based on d-q transformation and its improved circuits.

同样通过采用并联变压器二次侧多补偿绕组的结构来提高有源电力滤波器的容量。4、提出三种单相有源电力滤波器指令电流的提取方法，即基于LC并联谐振的基波电流检测方法、基于开关电容滤波器的基波电流检测方法、基于单相d-q变换的谐波电流检测方法及其改进电路。

According to the characteristic that the definition point of the Q matrix of wave front is always located on the extremum point on the axis of the beam, a three-dimensional formula for the rectificative factor of phase in complex ray paraxial approximation is proposed, which calculates the rectificative factor of phase directly without considering the calculation of the main directions and curvatures and the rotation of the coordinates, thus simplifying the paraxial approximation calculation by the complex ray expansion method.

根据波前Q矩阵的定义点总位于波束轴上极值点的特点，提出了三维复射线近轴近似相位校正因子计算公式。该公式不用考虑主方向和主曲率的计算和坐标旋转，直接计算相位校正因子，从而简化了复射线展开法的近轴近似计算。

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％。