比重测定

Methods The experimental TBI model was established by bumpiness of free falling body according to Feeney′s.The rats′cerebral edema were imaged with magnetic resonance image,The changes of brain water content and permeability of blood-brain barrier were measured by the methods of wet and dry weight and Evans blue fluorometry.The expression of AQP-4 mRNA was examined by reverse transcriptase polymerase chain reaction.

按照改进的Feeney自由落体撞击法建立大鼠创伤性脑损伤模型，用磁共振成像对大鼠脑水肿进行检测，干/湿比重法和伊文思蓝测定法观察大鼠TBI后不同时相脑组织含水量和BBB通透性的变化，并采用逆转录聚合酶链反应法检测AQP-4 mRNA的表达，蛋白质免疫印迹法检测AQP-4蛋白的表达。

The relative densities of flavors were determined by pycnometer and densimeter.

目前测定香精密度的方法主要有标准传统法-比重瓶法和密度仪法。

Fifty-six hatching eggs of Gushi Goose were selected to determine their egg weight, egg specific density, part proportion of egg components, shell thickness, albumen height, yolk Roche color and count the Haugh unit and the rate of blood and meat-spot.

方法］采集固始鹅种蛋56枚，测定蛋重、蛋比重、蛋形指数、蛋各组成部分比例、蛋壳厚度、蛋白高度、蛋黄色泽，计算哈氏单位和血肉斑率。

Objective To determine the ED50 and ED95 of intrathecal isobaric bupivacaine for cesarean delivery.

目的测定等比重布比卡因用于剖宫产术蛛网膜下腔阻滞麻醉的ED50及ED95。

In the paper, more than 1500 data points about the densities and viscosities and capacities for five binary systems related TPA at atmospheric pressure were measured using the pycnometer, Ubbelohde viscometer and the differential scanning calorimeter.

首先利用比重瓶、乌氏粘度计和差示扫描热量计测定了对二甲苯和醋酸、醋酸和水等五个二元体系在常压下的1500多个数据点的密度、粘度、比热数据。

Density, surface tension and rheological characteristics are the essential properties of the non-Newtonian fluid. Pycnometer, surface tensiometer, and rheometer were adopted respectively to measure the density, surface tension and rheological characteristics of 0.25%, 0.50%, 0.75% PAM aqueous solutions at 293.15K. The parameters of equations were fitted in terms of the experimental data.

密度、表面张力和流变性质是非牛顿流体的基本性质，本文采用比重瓶、表面张力仪和流变仪分别测定了293.15K温度下质量浓度依次为0.25%、0.50%和0.75%PAM水溶液的密度、表面张力和流变性质，并对数据进行了关联，拟合了方程参数。

Particularly,the CP content of H.compressa from Caoba is 3.0% higher than that of H.compressa cv.Chonggao.Therefore,there is a promising for H.compressa from Caoba to offer an alternative to be a new variety.By the clustering analysis,all native accessions are classified into four different types,which is helpful to choose and utilize further.

经测定，大邑生态型扁穗牛鞭草和草坝生态型扁穗牛鞭草表现出植株高大、茎粗壮、叶量丰富、干物质含量高等许多牧用性饲草的优良特点，特别是草坝生态型扁穗牛鞭草的粗蛋白质含量比重高牛鞭草高约3.0%，所以，它有望成为优良的扁穗牛鞭草新品种。

It was noteworthy that a large proportion of components contributable to residual COD were still unknown after biological treatment process, and the COD contributed by these components was even more than 50% of measured COD no matter whether the estimated COD of ammonia is neglected or not.

整个处理过程中还原性无机物和有机酸、醛酮类、酚类对COD的贡献较小，在每一监测点其所占COD测定值的比重之和均不超过9％。

Correlation e-quation between the pycnometric and densimetric determination of relative density was obtained by regression analysis of test data.

用这两种方法测得的结果一致与否，为探求这两者之间相关关系的密切程度和表现形式，通过测定系列香精的密度，并对所得数据进行线性相关和回归分析，得出了比重瓶法与密度仪法所得结果的相关方程。

Zinc and body fat contents were determined by stomic absorption spectrometer and gravimetrically, respectively.

锌浓度及体脂肪含量分别以原子吸收光谱仪及比重法测定。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷