查询词典 asymptotic density

The carbon foam were prepared by self-bubbling at high pressure from AR pitch added sodium dodecyl benzene sulfonate and Span-40, respectively. The bulk density, pore rate, compressive strength, thermal conductivity at room temperature and crystallitic parameters of carbon foam were measured. The rheological properties of AR pitch and pore structure of carbon foam were investigated.

以十二烷基苯磺酸钠和Span-40表面活性剂为添加剂，AR沥青为原料，制备炭素泡沫材料，测定了材料的体积密度、显气孔率、压缩强度、常温热导率以及微晶结构参数，研究了添加表面活性剂后AR沥青的流变性能和炭素泡沫材料孔胞结构的变化。

A"subgrain Al layer"was usually observed at the Al side of a SiC/Al interface containing no"interface Si"; the layer was less than 1μm thick and a few degrees crystallographically misoriented form the Al matrix, with high density of dislocation generated in it.

在那些没有&界面Si&的真正的SiC/Al界面处靠Al一侧，普遍地形成一层厚度不到1μm的&亚晶铝带&，它紧靠SiC表面形成，与远离SiC的Al基体有几度的位向差。

Cucumber, melon and watermelon are important Cucurbita crops. The high density Cucurbita genetic map will facilitate the Cucurbita breeding.

黄瓜、甜瓜和西瓜是重要的葫芦科瓜类作物，构建高密度的葫芦科瓜类分子遗传图谱研究将有助于提高瓜类作物的育种水平。

Compared to PD-nMCI,decreased gray matter density in PD-MCI was observed in right cuneus,precuneus,bilateral precentral gyrus,right orbit frontal cortex,bilateral midtemporalgyrus and left fusiform gyrus.

相比PD-nMCI组，PD-MCI组右侧楔叶、楔前叶、双侧中央前回、右侧眶额回(orbit frontal cortex，OFC)、双侧颞中回、左侧梭状回灰质密度明显减少。

The study on self-thinning mechanism will provide referencefor density management and regulation of Cunninghamia lanceolata plantation.

杉木林自疏机制的研究可作为杉木人工林的密度管理和调控的依据。

In addition, the paper analyzed and simulated growth process of stand basal area, volume and biomass under different initial planting density for Cunninghamia lanceolate, plantation.

另外，对杉木不同初植密度下林分断面积、蓄积和生物量的生长过程进行了分析和模型拟合。

The part of your ear responsible for balance — the cupula — floats in a fluid of the same density as blood.

Schaffer博士说，壶腹帽是耳部主管平衡的部分，它平时浮在同血液的密度相同的液体中。

It is hard for naval gun weapon system to forecast or track high speed and mobile aerial target. Aiming at this problem, a Barrage Firing Curtain firing method was presented. By increasing hitting points, the disperson density of pills and curtaining area are extended, and higher hit probability can be obtained.

针对舰炮不易预测和跟踪高度机动目标的问题，提出了一种拦阻射击方法，通过增加命中点个数来提高弹丸散布密度、扩大拦阻面积，获得较高的命中概率。

The Density Function Theorymethod are employed to study the geometries of the cyanic acid and isocyanic acid on the base of B3LYP/6-31++Gin the paper.

主要采用密度泛函理论方法，在B3LYP/6-31++G水平上，优化了氰酸、异氰酸的结构，分别得到氰酸的能量为-168.69356 a.u，异氰酸的能量为-168.73227 a.u，并对过渡态进行了反应的内禀反应曲线IRC计算。

The Density Function Theorymethod are employed to study the geometries of the cyanic acid and iso cyanic acid on the base of B3LYP/6-31+Gin the paper.

本文主要采用密度泛函理论方法，在 B3LYP/6-31+G基础上，通过优化氰酸、异氰酸的结构，分别得到的能量为-168.64128a.u 的氰酸和能量为-168.68027a.u 的异氰酸。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。