查询词典 low-grade

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。

Fresh fruit, low-fat diary products, low-fat or skim milk, keep up those salad bars, baked fish, baked chicken, and that lean roast beef.

新鲜水果，低脂乳制品，低脂或脱脂牛奶，保持这些沙拉，烤鲜鱼，烤鸡肉，而精益烤牛肉。

Low speed principle of closed - loop system , it can be concluded that the existence of the difference between static frictional and dynamic frictional torque , and the periodic saltation of the dynamic frictional torque , are the main reasons of the low speed stick - skip to the electrohydraulic position servo system

针对伺服马达的低速性能，进行了低速实验研究，并兼顾快速性能进行了阶跃响应和正弦响应实验研究，对实验结果进行了分析，得出了一些有价值的结论，提出下一阶段进行实验的建议。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。