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A new method of measuring density of matter is suggested. The volumes of infusible matter, fusible matter, hydrophilic matter, and solid with small granular are measured by using determinator of ratio of specific heat of gas.
提出了一种测量物质密度的新方法，即利用气体比热容比测定仪，既可测量不溶性物质的体积，又可测量可溶性物质的体积，还可测量吸水性物质的体积，特别是可以测量小粒状固体的体积。
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In inorganic chemistry experiment teaching material,"the Measurement of the Molar Gas Constant by Displacement method" uses the magnesium method of substitution or the aluminum method of substitution.
摩尔气体常数的测定方法很多，在无机化学实验中，常采用置换法来测定。其方法为：取一定质量的活泼金属，与一定体积的已知浓度的酸反应，在一定的温度和压强下，测得置换出氢气的体积。
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It was more appropriate to define the posterior commissure as the posterior margin of HF volumetry, the determination of volume range of HF was helpful in lateralization of temporal lobe epilepsy. 3D MPRAGE was superior to SE in the volumetry of HF.
后连合作为HF体积测定后界较合适，HF正常值的制订有利于颞叶癫痫的定侧。3D MPRAGE序列较SE序列用于HF体积测定更为优越。
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ResultThe maximumabsorption wavelength of reaction solution was about 720nm.The fermentation volume,adding the activated carbonor not,pHvalue of reaction solution and so on had no great effect onthe determinationresults and they could increase the screening efficiency.The effect of ultrasonic treatment for20min was obvious.When50ml volumetric flask was used,the suitable sampling volume was 2.5ml.It was better to centrifugate the fermentationliquid and the supernatant could be taken after standing inthe determination when necessary.
结果反应液最大吸收波长在720nm左右；发酵体积、加入活性碳与否、反应液的pH值等对测定结果影响不大，在筛选时可大大提高效率；超声波处理20min效果明显；在用50ml容量瓶进行定容时，取样体积以2.5ml为宜；对发酵液进行离心效果更好些，但在必要的情况下，可静置后取上清测定。
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Densities of glycine and L-serine in aqueous LiNO3, NaNO3 and KNO3 solutions have been measured at 298.15 K with an Anton Paar Model 55 densimeter. Apparent molar volumes, limiting partial molar volumes and transfer volumes have been calculated. Hydration numbers and volumetric interaction coefficients for amino acids were evaluated.
用Anton Paar DMA 55精密数字密度计测定了甘氨酸和L-丝氨酸在LiNO3， NaNO3和KNO3水溶液中的密度，计算了氨基酸的表观摩尔体积、极限偏摩尔体积、迁移偏摩尔体积、理论水化数和体积作用系数。
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In this part, the densities of sodium benzoate, sodium nitrobenzoate, sodium chlorobenzoate and sodium methylbenzoate in DMFwater mixed solvents have been measured at 298.15K with an Anton Paar Model 55 densimeter. From these densities, apparent molar volumes and partial molar volumes have been calculated, transfer volumes from water to DMF-water mixtures and substituent contributions to the transfer volumes have also been obtained. Solvent and substituent effects are discussed in detail. The Scaled Partical Theory has been applied to the ternary solutions to evaluate the partial molar volumes of cavity formation and the volumes change associated with solute-solvent interaction.
选择了含有取代基团的芳香类有机电解质，主要是苯甲酸钠、硝基苯甲酸钠、氯苯甲酸钠和甲基苯甲酸钠的邻、间、对同分异构体作为研究对象，用DMA 55型振荡管密度计测定了它们在不同质量百分数组成的DMF-水混合溶剂中的密度，利用这些密度数据，计算了表观摩尔体积和偏摩尔体积，得到了这些单取代苯甲酸钠从水到DMF-水混合溶剂中的迁移偏摩尔体积及苯环上不同位置的取代基对迁移偏摩尔体积的贡献值，讨论了溶剂效应和取代基效应，并将定标粒子理论应用于此三元电解质溶液中。
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The determination of quercitin was performed on Century SIL C18 BDS (250 mm×4.6 mm, 5μm) column, using methanol-water-phosphoric acid (V:V:V=60.00:40.00:0.02) as mobile phase at a flow rate of 0.8mLmin^(-1) and UV detection at 360 nm. The determination of gallic acid was performed on Century SIL C18 BDS (250 mm×4.6 mm, 5μm) column, using acetonitrile-water-phosphoric acid (V:V:V=5.00:95.00:0.02) as mobile phase at a flow rate of 0.8mLmin^(-1) and UV detection at 272 nm.
槲皮素的测定条件为：Century SIL C18， BDS(250.0mm×4.6mm， 5μm)色谱柱，流动相为甲醇－水－磷酸（体积比为60.00：40.00：0.02），流速为0.8mLmin^(-1)，检测波长为360nm；没食子酸的测定条件为：Century SIL C18 BDS (250.0mm×4.6mm， 5μm)色谱柱，流动相为乙腈－水－磷酸（体积比为5.00：95.00：0.02），流速为0.80mLmin^(-1)，检测波长为272nm。
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Water samples were extracted and purified and collected by solid-phase extraction LC-18 column. Soil samples were extracted by ethyl acetate/petroleum ether (2:1, by vol) and purified by sulphonation. Wheat sample was extracted by acetonitrile/water (4:1, by vol) and purified and collected by SPE- Florisil column.
水样直接用LC-18固相萃取小柱分离、净化和富集；采用乙酸乙酯／石油醚（体积比2：1）振荡提取，磺化法净化，测定土壤中氯氟吡氧乙酸残留量；以乙腈／水（体积比4：1）为提取剂，氟罗里硅土固相萃取小柱分离、净化，测定小麦样品中氯氟吡氧乙酸的残留量。
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The eluents were water, 10%, 20 %, 30 % and 50 % ethanol respectively and they flowed through the macroporous resin one by one with five times of the column volume. The obtained eluent of 50 % ethanol was evaporated and the content of total flavonoids was 76 % measured by HPLC.
结果 选择AB-8大孔树脂；最佳纯化工艺为上样液总黄酮质量浓度 60 mg·L-1，pH 5.0，温度 25 ℃；最佳洗脱方式是用5倍柱体积的水及体积分数分别为10 %、20 %、30 %的乙醇依次洗脱，弃去洗脱液后再用5倍柱体积的体积分数为50 %的乙醇洗脱；HPLC法测定总黄酮的含量为76 %。
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The bulk modulus describes volumetric elasticity, or the tendency of an object's volume to deform when under pressure; it is defined as volumetric stress over volumetric strain, and is the inverse of compressibility.
体积模量，描述了测定体积的弹性，或者说一个物料在压力作用下的体积相对于变形的程度；它被定义为体积应应变下的体积应力，且是体积柔量的倒数。
- 更多网络解释与体积测定相关的网络解释 [注：此内容来源于网络，仅供参考]
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platelet：小板
白细胞(WBC) 白细胞分类(DC) 红细胞(RBC)血色素(Hb) 血球压积(HCT) 血小板(Platelet)平均红细胞体积(MCV) 平均血红蛋白量(MCH)平均血红蛋白浓度(MCHC) 平均血小板体积测定(MPV)红细胞体积分布宽度测定(RDW)血液淋巴细胞计数(LYM
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stereometry：体积测定
stereography 立体画法 | stereometry 体积测定 | stereomicroscope 立体显微镜
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stereometry：测体积术;立体几何学;比重测定法
stereometer 体积计;视差测图镜 | stereometry 测体积术;立体几何学;比重测定法 | straight pipe prover 直管式标准体积管
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radiographic stereometry：放射照相体积测定
"放射摄影法","radiographic method" | "放射照相体积测定","radiographic stereometry" | "贝他加速器摄影术","radiography, betatron"
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volumetry：体积测定法
volumetric utencil 测容器具 | volumetry 体积测定法 | vortex 漩涡;涡动
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voluminosity：体积度
体积测定法,容量测定法 volumetry | 体积度 voluminosity | 随意肌 voluntary muscle
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stereometer：体积计;视差测图镜
standard volume 标准体积 | stereometer 体积计;视差测图镜 | stereometry 测体积术;立体几何学;比重测定法
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volumetric：测定体积的
volumeter 体积计 | volumetric 测定体积的 | voluminous 很多的
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volumetric：(测定体积)
Lifespan Mode(生命期方式) | Volumetric(测定体积) | Constant(恒量)
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bulk milk sediment tester：收集乳沉淀物测定仪 牛乳在导乳管道或贮槽中的沉淀物测定仪
bulk milk collection || (用槽车)收集牛乳 | bulk milk sediment tester || 收集乳沉淀物测定仪 牛乳在导乳管道或贮槽中的沉淀物测定仪 | bulk modulus of elasticity || 体积弹性模量