体密度

According to Biot-Savart law, the magnetic induction at the diameter position of the spin axis is calculated. Furthermore, using the internal and external radius of the Earth's outer core as well as the radius of the Earth and the magnetic induction at the Earth's magnetic pole, the volume charge density and surface charge density of the Earth's outer core have been obtained.

先根据毕奥-萨伐尔定律计算球形模型绕自转轴旋转时在自转轴直径上产生的磁感应强度；再利用已知的地球外核的内外半径及地球半径和磁极处的磁感应强度值，计算出地球外核的电荷体密度及面密度。

The results of our study indicated that Colles'fractures in 40～65 aged women caused by low energy injury were associated with significantly reduced BMD and a high proportion of patients were osteoporotic.These patients should actively protect themselves against other future fratures.

检测结果表明40～65岁女性因轻创伤引致桡骨远端骨折不仅与低骨质面密度有关，同时与体密度相关更密切，是骨质疏松的先兆，要慎防其它骨折的产生。

The results showed that the volume density of mitochondriumand mitochondrial intermembrane crack increased according to ischemic time extension;The volume density ofmitochondrial crista decreased according to ischemic time extension;prominent defference occured after 45 min-utes of ischemia,The practice demonstrates that image analysis instrument has marked pre...

结果显示：线粒体和线粒体外室的体密度随缺血时间延长而加大，线粒体嵴的体密度随缺血时间的延长而减少，缺血45min以后即和正常对照有显著性差别。实践证明，图像分析仪在定量超微结构的变化上，具有高度的精确性，故可早期发现病变。

Methods: By the transmission electron, image-manipulation system, the proportional volume, mean diameter and numerical density of the atrial specific granules were studied.

采用透射电镜，高清晰彩色图像分析系统对大鼠心肌细胞心房特殊颗粒的体密度、数密度及颗粒平均直径进行数据处理。

Results: The proportional volume, numerical density of the granules in ovariotomy group were less than those in sham-ovariotomy and ovariotomy estradiol groups (P.001); the proportional volume and numerical density of ASG in myocardial cells almost came back to the normal level with small dose estradiol; along with the enhancement of estradiol dosage, the content of ASG in myocardial cells was more than those in sham-ovariotomy and small dose estradiol group (P.01), and showed a quantity-efficiency relation.

结果：切除大鼠双侧卵巢后，心房特殊颗粒的体密度和数密度与对照组及用雌二醇组比较明显减少(P＜0.01)，小剂量雌二醇可使大鼠心肌细胞心房特殊颗粒的体密度和数密度恢复到正常水平，随剂量增加，心肌细胞心房特殊颗粒的量也伴随增加，呈量效关系。

In this paper, cholinergic neurons was mapped in the two kinds of birds (Emberiza rutila and Fringilla montifringilla) by using immunohistochemical method.The soma size and cell density of cholinergic neurons in the three song control nuclei, the higher vocal center, the robust nucleus of the archistriatum and area X, were measured and compared. Here we discussed the distribution of cholinergic neurons and their effect on the process of song producing and song learning.

本文以中国北方地区常见的两种鸣禽栗鹀和燕雀为材料，应用免疫组化方法，对两种鸣禽发声控制核团，即上纹状体腹侧尾核或高级发声中枢、古纹状体粗核、X区内胆碱能神经元的胞体大小和胞体密度进行了观察测量，旨在探讨胆碱能神经元在发声控制核团内的分布情况及其在鸣啭产生和学习过程中的作用。

Results A lot of lysosome and vesicles existed in endothelia of hepatic initial lymph vessels.

结果 肝起始淋巴管内皮细胞中富含溶酶体和质膜小泡，小泡的数密度为39.80个／μm3，体密度为0.028。

To investigate the effects of stereological alteration of platelets on hemorrhage in hemorrhagic fever with renal syndrome, platelet mean cross area, area density of α-granules, volume density,the mean open tubule and pseudopodia mean were performed stereometric analysis in 12 patients with HFRS.

曾庆善 ，谢玉桃，鲁猛厚对12例肾综合征出血热患者血小板的平均截面积、α-颗粒的面数密度、体密度及开放小管和丝足的均数进行计量学分析。

The detail microstructure, composition and optical property of the films have been explored through RBS, XPS, Raman, XRD and IR spectroscopes. The negative bias dependent film growth on the influence of grain size, preferred orientation, and density within grain boundary and volume densification was a significant phenomenon for hetero-deposition.

用RBS，XPS，Raman和IR谱分析薄膜的微结构、成分和光学性质表明，a-CN〓薄膜包含石墨和类金刚石的相成分，加适当的负偏压可增加沉积原子的扩散度，改变薄膜固体结构，影响薄膜的多晶晶粒尺寸、晶面取向、晶界密度和体密度。

Methods The influence of inducer concentration and medium on the bacterial density and expression level of target protein in Erlenmeyer flask, as well as the influence of time for induction, method for fed batch and dissolved oxygen on those in 10 L fermentor, were explored.

在三角烧瓶中，探讨不同的诱导剂浓度和培养基对菌体密度和目的蛋白表达量的影响；在10L发酵罐中，探讨诱导时间、补料方式、溶氧量对菌体密度和目的蛋白表达量的影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。