体密度

Theoretical studies on various geometrical structures of Hypophosphorous acid were carried out using DFT theoretical methods, at the B3LYP/6-311 ++ G(superscript **) level. Intramolecular proton transfer isomerization has also been studied using the intrinsic reaction coordinate.

采用量子化学密度泛函B3LYP方法，在6-311++G基组水平上全优化得到了硫代次磷酸的硫酮式和硫醇式两种构型异构体以及相应的对映异构体，同时对分子内质子转移异构化反应微观机理进行了理论分析。

Results Under TEM, the surface and nuclear membrane split, a great number of vacuoles and high electron density particles appeared in the cytoplasm in Pc trophozoites, vacuoles also did in Pc cysts, intracystic bodies became denaturation and necrosis; under SEM, filopodia and microvilli became sparse,short and fell off, a breach appeared in the surface membrane in Pc trophozoites.

结果 透射电镜发现Pc滋养体表膜和核膜破裂，胞质中出现大量空泡和高电子密度颗粒，Pc包囊中也出现空泡，囊内小体变性坏死；扫描电镜发现Pc滋养体丝状伪足和微绒毛稀疏、变短甚至脱落，表膜出现缺损。

Considering the state equations available are not applicable to salt-bearing fluid inclusions, the authors have established the density and isochoric formulae for NaCl-H_2O-bearing fluid inclusions (salinity≤25wt%) using the least sqaures method in conjunction with the experimental data.

由于含盐类包裹体不能应用现有的状态方程求解，作者根据实验数值，采用最小二乘法等，得到含盐度≤25的NaCl-H_2O溶液包裹体的密度式和等容式。

This paper has firstly identified these genetic units on shore beach-shore face、longshore zone、 longshore sands、erosional channel、leveed channel、turbidite lobes、turbidite sheet、slump、debris flow、 density-modified grain flow etc; At the same time, and points out that the lake of Cretaceous is open-type fresh water lake.

2首次系统确定滨滩-滨面、沿岸带、沿岸沙坝、侵蚀水道、有堤水道、浊积叶状体、席状浊积、滑塌体、碎屑流、密度改正颗粒流等成因单元。同时指出白垩纪湖泊为开放型淡水湖。

An olefinic resin composition having the specific range of density, melt flow rate, viscoelastic properties and melt tension is obtained.

本发明得到了一种烯烃树脂组合物，它具有特定范围的密度、熔体流动速度、粘弹性和熔体张力。

The apoplasmic charater of ectomycorrhizal roots of Larix seedlings infected with Paxillus involutus was examined using the cathnic colloidal gold. The result showed the density and distribution of anionic binding sites were different in sheath and Hartig net. The negative charger in the outer part of the sheath was slightly low. It increased graduately from outer to inter sheath. The negative charger density rised higher in the inter part of the sheath and then decreased graduatedly from the sheath to Hartig net. This may be related to nutrient uptake and atransport in ectomycorrhizal roots.

利用阳离子胶体金探针研究日本落叶松和卷缘桩菇形成的外生菌根质外体的特性，结果表明，外生菌根质外体负电荷分布是不均一的，在菌套外侧负电荷比较低，向内侧逐渐增高，在靠近单宁层菌套菌丝细胞壁负电荷密度最高，再向内侧过度到哈蒂氏网又呈现出明显逐渐下降的现象，而且在哈蒂氏网负电荷主要分布在植物的细胞壁，真菌菌丝细胞壁负电荷很少。

This observation provided a strong support to the point that most leaves export the most of assimilates in the light time. Plasmodesmal densities between SE/CC, CC/PP, PP/PP and PP/BSC (bundle-sheath cell) decreased in weak light. Plasmodesmata were observed between CC/SE (nacreous-walled sieve element), PP/BSC in branch veins in normal light intensity, but not in weak light. Thus apoplasmic pathway may be the main mode of transport of assimilates in weak light, however symplasmic pathway may be the main mode of transport of assimilates in normal light intensity.

在筛管/伴胞、伴胞/韧皮薄壁细胞、韧皮薄壁细胞/韧皮薄壁细胞和韧皮薄壁细胞/维管束鞘细胞之间的胞间连丝密度都在弱光条件下下降，在正常光照强度下支脉筛管/伴胞和韧皮薄壁细胞/维管束鞘细胞之间可以观察到胞间连丝，而在弱光下几乎观察不到胞间连丝的存在，所以同化物的运输在弱光条件下可能以质外体运输为主，而在正常光照强度下，共质体运输可能是主要的运输方式。

Results There were 5 species of indoor free flea in Hepu County and Pulex irritans was dominant, accounted for 93.40%.

结果合浦县黄胸鼠体共有6种寄生蚤，年平均鼠密度为4.09％，平均染蚤率为43.13％，黄胸鼠体印鼠客蚤指数为1.0982。

The results indicate that pyrochlore synroc has high density and waste loading, well durability and radiation stability, and it is a suitable host for high level radioactive waste as well as the final disposal of the final geological.

已有的研究表明，烧绿石人造岩石固化体具有较高的密度和包容量，良好的抗浸出和抗辐照性能，是固化高放废物和进行最终地质处置的理想固化体，具有良好的应用前景。

Results Irregular symmetrical sheets of lesions with low density around bilateral ventricles were seen in all patients and 62 cases around the front horns, 53 cases retral horns and 38 cases beside the ventricles.

结果 ：72例患者 CT平扫均见双侧侧脑室前后角及体部旁或半卵圆中心区脑白质大小不等斑片状不规则的大致对称的低密度影，发生在侧脑室前角周围 6 2例，后角周围 5 3例，侧脑室体旁 38例，半卵圆区 19例，伴有腔隙性脑梗死 4 1例。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐