查询词典 average density

The experimental research on the EAF probability density has shown that the emission characteristics of gasoline engine can be defined by the probability density, which has correspondent relations with catalyst efficiency index. The catalyst efficiency can be predicted through the calculation, so it is useful to the catalyst application.

过量空气系数概率密度的试验研究表明以概率密度对汽油机排放特点进行量化，通过它和催化转化器综合效率指数的关系，推测催化转化器效率情况，对匹配研究具有指导意义。

Are many kinds of composite doors, which is based on solid support or within the framework of doing, paste of high-density fiber panel, or medium density fiberboard, particleboard and other synthetic materials, the final surface and then affixed with a wood grain and color of paper or PVC film made of.

复合的门品种很多，它是以实木做内支撑或框架，贴上高密度纤维面板或者中纤板、刨花板等人工合成材料，最后表面再贴上带木纹和色彩的纸或PVC软片做成的。

This paper introduces a novel technique for estimating the signal power spectral density to be used in the transfer function of a microphone array post-filter.The technique is a modification of overestimation of noise power spectral density of the existing Zelinski post-filter and McCowan post-filter,which utilize the auto- and cross- spectral densities of the signals.Near-field compensation is taken into account.

介绍了一种用于近场麦克风阵列后滤波语音增强的方法，避免了现有的利用自功率谱密度和互功率谱密度的Zelinski和McCowan后滤波器中噪声功率谱过估计的问题，并加入了近场传播的幅度衰减补偿和相位延迟补偿。

"Its mean density is only about 0.2 grams per cubic centimeter, or about the density of balsa wood," said study leader Georgi Mandushev of the Lowell Observatory in Arizona.

&其平均密度只有约每平方厘米0.2克，或者说相当于轻质木材的密度，&研究小组组长、亚利桑那州洛厄尔天文台的乔吉·曼德舍夫说，&由于该行星对上层大气的引力相对较小，很可能其中部分大气呈慧尾状而逃逸掉。&

The weight and percentage of plated metal of metallized fiber can be derived from measuring the weight and volume of metallized fiber via the density formula and the law of conservation of mass with konwing the density of plated metal and the basic fiber.

通过测定表面金属化纤维的质量和体积，利用密度公式和质量守恒定律，只需知道表面金属和基材纤维的密度即可推导出镀层金属的质量和表面金属化纤维的质量分数。

The soil nutrient content of spruce forest with small canopy density was lower, compared with that of spruce forest with great canopy density.

具体表现为郁闭度较大的云杉林立地土壤养分含量总体高于郁闭度小的云杉林。

And than the soil water contents of mountainous meadow was intervenient. The diversification of soil bulk density was completely reverse with the soil water contents. The soil bulk density of alpine meadow and sub alpine meadow was evidently lower than hilly meadow steppe and alluvial flat meadow steppe.

高山和亚高山草地类型的土壤含水量明显高于低山丘陵和河滩阶地的类型，而中山类型的草地土壤含水量在它们中间；土壤容重的变化趋势则完全相反，高山和亚高山草地类型的土壤容重明显低于低山丘陵和河滩阶地的类型。

Centrifuging method was used to determine soil water characteristic curves of four undisturbed soils different in bulk density, and through the experiment, surfaces depicting quantitative relationship between mass water content, pressure head and bulk density in the four soil samples were obtained.

用离心机法测定了四种原状土壤不同容重下的土壤水分特征曲线实测点，从实验上获得了四种原状土壤的质量含水量、吸力和容重三者间定量关系曲面。

In the study of isospin-dependent nucleon-nucleon elastic crosssections in nuclear medium we find the medium correction of nucleon-nucleon scatteringcross sections is also isospin dependent,〓 depends on the baryon density weakly and 〓 depends on the baryon density significantly.

用QHD-Ⅱ模型研究了介质两体截面的同位旋相关性，研究结果表明截面的介质修正也是同位旋依赖的：中子-质子介质截面对核密度的依赖很弱，而中子-中子的介质截面对核密度的依赖很强。

Siloxane was grafted on the low density polyethylene to improve the property of the environmental stress cracking of low density polyethylene.

研究了低密度聚乙烯接枝聚硅氧烷后的环境应力开裂性。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。