查询词典 low-class

The purposes of this study were (1) to compare the differences of the transverse craniofacial morphology between the adult high-angle and low-angle facial skeletal types, and (2) to correlate the width measurements with data obtained from PA roentgenogram. Thirty-seven adults, 18 to 22 years old, with varied vertical facial types were separated into two groups: seventeen high-angle, twenty low-angle facial skeletal types.

高低角骨面型是垂直向发育异常所造成的两种极端骨面型，近年来逐渐成为学者们研究的热点，目前的研究大多是基于头颅侧位X线片从矢状向和垂直向进行比较，而未查及高低角骨面型横向颅面结构的系统性研究。

The experiment was carried on in 2004-2006 year in the Shandong Longkou and the Shandong Institute of Forestry Science courtyard, Research was carry on how to reduce the cost in view of the low reproduces coefficient, low rootage and transplanting, not formed the scale to produce, the perfect group cultivates and the seedlings technical system to the factorization to carry on to the optimized so the technical system effectively reduce the single cost.

本试验于2004-2006年在山东省龙口复发中纪和山东省林业科学院院进行，针对组织培养过程中繁殖系数低、生根率和移栽成活率低，没有形成规模化生产，达不到规模效益等问题造成生产成本高的原因进行研究，完善组培苗的生产技术工艺，对苹果砧木工厂化育苗技术体系进行了优化调整，建立起了一套实用性强的高效工厂化育苗技术体系从而有效地降低单株成本。

In the case of low doping concentration of porphyrins and long interchain distance, the rotational motion of porphyrin molecules is the main reason of fast luminescence decay and low luminescence efficiency.

在卟啉低掺杂浓度和聚合物分子链间距离较大的情况下，卟啉侧链基团的旋转成为影响荧光寿命和发光效率的主要因素。

Set pitch or low frequency surge can bring the roulade of the periodic change to the volume. To set the low frequency surge or controller can bring quaver. And set the both can make the timbre bring periodic rocky purpose. We edit out the percussion timbre that adapts the musical style and character, during the editing course, the percussion timbre is decided by our musical understanding.

通过设定音高包络或低频振荡调制可产生周期性变化的颤音效果，通过设定包络、低频振荡器或控制器，可以产生音量周期性变化的震音效果，通过滤波器消除声音中的杂质，通过包络、低频振荡器或控制器的设定，使音色产生周期性晃动的哇音效果，音源在研发的过程中已经对各种鼓音色进行了设定，我们使用编辑制作出适合音乐风格和特点的打击乐音色，在编辑制作过程中，人脑对音乐的理解将最终决定打击乐的音色。

The friction coefficient of the samples with low density of composite A increase with the prolonging of test time, while the samples with high density remain stable; the friction coefficient of the samples with low density of composite B exhibit ruleless results with the increase of load, while the samples with high density remain stable, too.

随时间延长， A 材料低密度试样摩擦系数升高，高密度试样的保持稳定； B 材料低密度试样的变化不规律，高密度试样能基本保持稳定。

When the system run at a low temperature, the biogas production and COD removal rate in UASB reactor went down, but acidification did not occur. The performance of SBR was not influenced greatly by low temperature.

低温运行时，UASB表观沼气产量和COD去除能力都有所下降，但系统未发生酸化现象；SBR对有机物的去除效果受低温影响不大，污泥性能未受太大影响。

High-quality, high-speed and stable operation, low maintenance, low running costs.

高品质，高速稳定的运行，少维护，运行成本低

Results indicate that the ruthenium catalyst has high activity at low pressure and low GHSV.

随着空速的降低，催化剂的活J日一明显提高石压力一定的条件下，最佳氢氮比随反应温度而异。

The ruthenium catalyst has high activity at low pressure, so it suitable for low-pressure ammonia synthesis.

但钌催化剂具有较高的低压活性，适宜低压合成氨。

So the meshing clearance technique is a feasible method for the sabot design with the materials of low density and low intensity.

因此啮合间隙技术为低密度低强度材料的弹托设计提供了可行的方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。