查询词典 wide-ranging

Some upper and lower bounds of wide diameter of the circulant graphs of degree 4 are also obtained.

根据循环图的传递性和对称性，得到了n阶4度连通循环图的宽直径的上下限。

It is said that the drag reduction of the flow past a circular cylinder is of very wide engineering application background and of important theoretical investigating value.

降低亚临界绕流工况下的圆柱绕流阻力具有广泛的工程应用前景和重要的理论研究价值。

Because any reports on the active control of rotating disk haven't be seen in China up to now, and this experiment research is important, so the complete set of active control system of rotating disk are built independently. The push-pull type electromagnet is applied to control the vibration of the circular disk. The power amplifier circuit that can respond to wide scope in frequency from DC to AC is designed by improving the existing circuit. The sensor signal is first low-pass filtered, then the proportional control plus the differential control circuit easy used in practice are applied to finish the more effective control. The electromagnetism shield is used as possible to decrease the signal disturbance from the electromagnet to eddy sensor.

考虑到目前国内尚未见到有关旋转圆盘振动主动控制的相关报导以及实验的重要性，自行设计制作了一整套旋转圆盘振动主动控制系统：提出并采用推拉型电磁作动器来控制圆盘的振动；在改进现有电路的基础上，自行设计了具有较理想特性的驱动电磁作动器的功率放大器；根据实际控制环境的特点，设计了先进行低通滤波，再采用比例和实用的近似微分电路构成的控制器，并采用了电磁屏蔽来减小电磁铁对传感器的干扰，以实现更有效的控制。

Two-dimensional finite difference time domain simulation results show that, in a wide angle range (about 20 degrees), in a normalized circular frequency range of , the transmission intensity can reach over 98% for both TE and TM polarization.

二维有限时域差分模拟结果显示，在较宽的角度范围内（约20度），约化圆频率处在范围内，分束器对TE和TM偏振光的透射强度都能达到95%以上。

Concrete structure with circular cross section,especially concrete column has wide application in engineering.

0引言圆形截面混凝土结构在工程中应用非常广泛，随着我国建筑技术的迅速发展，由于建筑造型的需要在多层及高层建筑中采用了越来越多的圆形截面柱。

The study leads to the conclusion that the circular comb slow wave structure has an impedance over 1 Ω at its fundamental mode within a relatively wide band and may interact with the beam effectively.

该结构内孔径为波长的1/4~1/3，是同一频段螺旋线慢波结构的5倍左右，能容纳比螺旋线大25倍的电流，能够承受比螺旋线大25倍的平均功率。

The new antenna has the advantages of sim ple structure, easy feeding and a wide frequency range, and circular polarized wave. The characteristics are m uch better than a bifilarbackfire helicalantenna, a shortbackfire antenna and a backfire...

它具有结构简单、馈电方便、遮挡小、频带宽、增益高且易于产生圆极化波等优点，性能远优于带相同接地板的螺旋天线、普通短背射天线以及单线背射螺旋作馈源的短背射天线。

Pneumatic down-the-hole hammer is a drilling method with many advantages.Its features,such as wide application range,high hole quality,no circulating medium,low operation regulations,and drilling big diameter rock hole,fit to construct slide-resistant pile.

风动潜孔锤钻进是一种具有许多优点的钻进方法，它的许多特点，如成孔质量高、应用范围广、无液体循环介质、钻进规程参数小、可实现大直径基岩钻孔等都适合于抗滑桩施工。

As far as the content and style are concerned,Xin's theme contains wide scope,some are to express the emotion,some are to intone the nature,some are to describe the fact. As for the style,his poems are more rich and colorful than others,some are circumbendibus,some are minuteness,some are generosity.

就其词作的内容与风格而言，或用以抒情，或用以咏物，或用以铺陈事实讲说道理，题材广阔无所不包；风格方面则有的委婉清丽，有的秾纤绵密，有的悲歌慷慨大气包举，其丰富多采变化多姿实非他人能匹。

This problem has caused wide public concern in most cit ie s all over the world.

农民进城打工正成为增长的趋势，这一问题在世界上大部分城市已引起普遍关注。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。