通过改变消声器的两腔容积比,可以改善消声器的有效消声频率范围。
Changing volume ratio of the two-chamber muffler can improve the effective noise reduction frequency range of the muffler.
方法:以混悬剂的沉降容积比,再分散性为指标,通过均匀设计法测得。
Methods:Uniform test design was used in the calamine lotion, judged the stability by sedimentation rate and separate charcacter.
用沉降容积比,颗粒大小及分布,滴定曲线,初步稳定性考察制剂的质量。
The quality of the suspension was characterized by measuring its sedimentation volume, size distribution, titration profile and stability.
结果:本品的性状,沉降容积比,再分散次数及铝的含量在实验条件下无明显改变。
RESULTS The appearance, contents of aluminum, sedimentation volume ratio, times of dispersing had no obvious changes.
本发明的一种用线性真空计测量真空容器容积比的装置及方法,属于测量技术领域。
The invention discloses a device and a method for measuring a volume ratio of a vacuum container by a linear vacuometer, and belongs to the technical field of measurement.
提出了一种修正型线涡旋压缩机内容积比的确定方法,给出了压缩腔容积和内容积比计算公式。
The method used to determine volume-reduction ratio for scroll compressor with modified profile is proposed. Formula for compression pockets and volume-reduction ration are given.
利用向量代数中定比分点公式的向量形式,给出了一种非常简明有用的求容积比中线段比的新方法。
Applying the vector representation of formula for definite proportional division point in vector algebra, this paper obtains a new useful method of compunction for segment ratio in volume ratio.
使用不同混悬剂稳定剂对痤疮洗剂的沉降容积比测定、重新分散试验、微粒大小的测定及黏度测定等指标进行质量评定。
Methods stability of acne lotion with different stable agent was studied by quality evaluation:sedimentation rate tests, redispersibility tests, grain size tests and viscosity tests.
实际流量除以理论流量得出一个数值,以百分比计,表示的即是容积效率。
Dividing the actual flow by the theoretical value calculated above will yield a value which, taken as a percent, indicates volumetric efficiency.
这种泵流量均匀、作业平稳、噪音小、作业压力和容积功率比齿轮泵高、布局比齿轮泵杂乱。
The pump flow evenly, smooth operation, low noise, high power operation pressure and volume ratio gear pumps, gear pumps than messy layout.
主要终点为自基线至24周的预测1秒钟用力呼气容积(FEV1)百分比的估计平均变化。
The primary end point was the estimated mean change from baseline through week 24 in the percent of predicted forced expiratory volume in 1 second (FEV1).
柔性摆线转子泵集齿轮泵与叶片泵优点于一身比同类容积泵的效率提高10%以上。
Flexible set cycloid gear pump rotor pump vane pump with the advantages of a similar volume than pump more than 10% efficiency.
阿里安5和当前正在使用的阿里安4相比,直径和贮箱容积以及推力都有了极大增加,还提高了可靠性要求。
Ariane 5 has a much larger they-diameter, tank capacity and greater thrust power than Ariane 4. The reliability of Ariane 5 also must be improved.
相对湿度RH是指一定容积内空气的湿度饱和百分比。
Relative humidity RH refers to the humidity saturation percentage of the air in certain volume.
分析了水力负荷、气水比、污染物容积负荷对反应器除污效果的影响。
The influences of hydraulic load, air-water ratio, volume load of pollutants on the effect of the removal efficiency were also studied.
且尺寸体积远小于同流量的容积式压缩机,稳定性和压比也比同流量的条件下的叶轮式压气机有所提高。
But it has smaller volume than displacement compressor at the same mass flow rate; and higher pressure ratio and efficiency than impeller compressor.
通过改变稳压箱阻尼管的直径比、稳压箱的容积等方法,比较了稳压箱在几种不同情况下的稳压效果。
By such means as changing the diameter ratio of the box and pipe and the volume of the stable pressure box, the effect of the box in different situations is contrasted.
通过改变稳压箱阻尼管的直径比、稳压箱的容积等方法,比较了稳压箱在几种不同情况下的稳压效果。
By such means as changing the diameter ratio of the box and pipe and the volume of the stable pressure box, the effect of the box in different situations is contrasted.
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