查询词典 sample method

Objective:To establish and prove the method to determine the fluorine in water sample by using the two-point locating .

本文通过对标准方法的再研究，结合监测仪器的特有性能，提出用两点定位法测定水质样品中的氟，通过对实验样品的精密度、准确度分析，本方法的标准偏差在0。

The blank reference experiment shows that hydrothermal crystallization treatment favors the formation of hexagonal tungsten trioxide, and the tungsten trioxide powder sample prepared by this method has a high degree of crystallinity.

水热晶化处理的空白对比实验表明，水热晶化处理有利于介稳态六方WO3的形成，晶粒发育更完整，结晶程度更高。

In VQNN, the dynamic programming method is introduced to estimate the initial value of the speech sample vector cluster center and to determine initial weight matrix, and the code vector that is 256 quantization degrees is built.

VQNN 中引入了动态规划法估计语音样本矢量的码本类中心初值并确定网络的初始权矩阵，可构造出256 个量化等级的码本矢量。

The results showed that the method can meet the technical requirements on the soil sample test and analysis in the national survey of soil pollution.

本研究所建立的土壤中PAHs和PAEs的GC-MS快速分析方法及其质量控制措施可以为全国性土壤污染状况调查数据的科学性和准确性提供技术保障。

The invention aims at solving the problem of generating the self-restriction shrinkage stress caused by the shrinkage deformation difference at various positions in a concrete sample that is not considered by the existing concrete shrinkage stress detecting method.

本发明的目的是为解决现有混凝土收缩应力的测试方法没有考虑到混凝土试件中不同位置处的收缩变形差异而产生自约束收缩应力的问题。

Dead branches or knots in different sizes of tree was studied and different branch development phases of growth,suppression,death and self-pruning was analyzed to evaluate the effect that knot size and distribution impact on timber quality.Branch and knot dynamic models were developed using stand and tree variables.Based on multipleunit stepwise regression method, the individual tree growth model was established using forest and crown factors as the variable. The best taper equation model of Larix olgensis was bucking data of 130 sample trees selected in the studied area.

本研究以不同年龄、不同密度及不同立地条件的落叶松人工林作为研究对象，基于19块标准地中95株标准木的树干解析、枝解析及节子剖析数据，揭示了不同林分条件下林木的枝条数量及在树冠内的空间分布格局、生长发育规律；研究了不同大小树木的死枝和节子大小及其变化规律，分析了枝条的生长、被压、寿命和自然整枝过程，评价了节子大小和分布对木材质量的影响；以林分变量、林木变量和着枝深度等为自变量建立枝条生长和节子大小的动态预测模型；选择林分因子和林木的树冠因子作为竞争因子，用多元逐步回归的方法建立落叶松人工林与距离无关的单木生长模型，并根据研究地区选取的130株造材样木数据，建立了落叶松人工林最佳削度方程。

The drained behavior of Hokksund sand under low confining pressure was studied through static triaxial test, and the samples were prepared through the dry sedimentation method. The test results were corrected through the membrane effect which is often neglected under high confining pressure, the correction to axial stress for dense sample under a cell pressure of 10 kPa is equal to 12%.

采用干样沉降法制备样品，选用静三轴仪对松砂和密砂样在10kPa 至100kPa的低围压下的排水行为进行了实验研究，并对实验结果作了橡皮膜校正，在围压为10kPa的密砂实验中，轴向应力的校正值可达到12%。

A Research on the Reliability Calculation and Safety Assessment Methods of Spherical Tank with defects The quantitative risk evaluation method of tower equipment Crack growth prediction in a graphite sample under mixed mode loading Rock tensile strength test using disc type specimens-An investigation on sub-sized specimens Deformation Testing of the Round-link Chains for the Scraper Conveyer Based on the Weak Magnetic Testing Technology

研究计算的可靠性和安全性评估方法球罐缺陷定量风险评估方法，塔设备裂纹预测中的石墨样品混合装岩石抗拉强度试验用圆盘式标本的一项调查就分大小的标本变形测试圆圆链刮板输送基于弱磁检测技术还有什么不明白的地方再问我。谢谢！！！

The Temperature fields in ladder-shaped sample of ZL105 alloy with sand mold and metal mold in solidification process were simulated by finite element method.

利用有限元方法，采用阶梯试块，对ZL105合金的砂型铸造和金属型铸造的凝固过程中的温度场进行了有限元模拟。

In gas chromatography analysis of space at the top of the method is typically used to analyze folding carton and was placed in informationitive-like sample vial heat place that analysis of the ammomium coal gasification and enters the top space, then the procedure that is described earlier in the testing process.

在气相色谱分析法中，顶部空间分析的方法通常用于分析折叠纸盒，被测度样放入样品小瓶中进行加热，使被分析的单体气化并进入顶部空间，随后的过程与前面所描述的测试过程一样。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。