查询词典 systematic sample

One dimensional shockwave code SSS was adapted to simulate the number density andporosity of incipient spalled OFHC Cu and pure Cu sample at the range of 10~4-10~5s~(-1). TheNAG model coefficients were acquired, the nucleation coefficient was sensitive with thepurity of sample.

采用一维冲击波程序SSS结合SRI-DFRACT模型模拟10~4-10~5s~(-1)加载应变率范围内无氧铜和工业纯铜中微孔洞数密度和孔隙度分布，由微孔洞分布相关参数与应变率的关系，确定了～10~5s~(-1)应变率下NAG模型参数，发现成核速率与材料纯度有关。

Harbin Institute of Technology, Harbin 150001, China）Abstract: The modified layers by O2-PBII technology on Ti6Al4V alloy surface were studied using X-ray photoelectron spectroscopy. The negative pulse voltage of 10, 20, 30 kV was applied to the sample, which was mounted on an oil-cooled sample holder. The results show that the thickness of the oxide layer increases with increasing implanted ion energy.

摘 要：采用等离子体基离子注氧技术（O2-PBII）对Ti6Al4V合金进行了表面改性处理，实验过程中改变注入离子能量的工艺参数，负脉冲偏压分别为10、 20、 30 kV，离子注入过程中样品台通油冷却以实现低温注入；用XPS对离子注氧层的深度、成分及化学结构进行了系统的分析。

Large spinning rifflers are used to ensure that there is minimal deviation from sample to sample.

大型纺纱用于确保有最低限度的偏离在样品之中。

With a twin-screw extruder to prepare polypropylene / 8 ether bromide pellet, and injection molding into sheet samples, quantitative analysis of different PP / 8 the sample surface, eight bromine bromine ether ether precipitation changes with time, Using X-ray photoelectron spectroscopy on the sample surface concentrations of bromine atoms ...

用双螺杆挤出机制备了聚丙烯/八溴醚粒料，并注塑成片状样品，定量测定了不同PP/八溴醚样品表面上八溴醚析出量随时间的变化，用X-射线电子能谱对样品表面溴的原子浓度。。。

The simulation of the bandgap reference using ideal resistents shows that It's precision is 16.6 ppm.The dynamic range of the sensor is increased by 2~N using multi-sample. The FPN is cancelled using CDS. The pipeline ADC has the good tradeoffs of resolution, sample rate and area.

像素阵列的扫描方式使用多采样技术可以提高传感器动态范围2~N倍，相关二次采样技术消除了像素单元之间的固定模式噪声，使用流水线式的模数转换器可以实现好的分辨率、速度和面积等的折衷。

In comparison with the sample directly sintered at 650 ℃＜TN, an interesting, irreversible transformation in the crystal structure of the MgB2 phase is observed with the sample going through the stages of initial sintering at 750 ℃, then re-sintering at 650 ℃ in an Mg-rich environment after the processes of regrinding and pressing.

把直接在650 ℃＜T N，烧结的样品与先在750 ℃下烧结，之后又再次重磨和处理后，并于富镁的环境中在650 ℃下再烧结处理的样品相比较，观察到了MgB2的不可逆的晶体结构转变。

ZYP-400KN and ZYP-600KN Sample Pressers are adopted the methods of internal mould sample-press, with features of easy operation, high efficiency and stable and reliable performance.

我公司生产的压样机是X射线荧光光谱仪的配套设备。ZYP-400KN，ZYP-600KN型压样机采用内模压样方式，操作方便、效率高、性能稳定可靠。

The protein and the fatty compounds in the sample are precipitated by zinc acetate and potassium ferrocyanide, then the chromogenic reaction of acetylacetone with formaldehyde released from the sample in weak-acid medium and boiling bath takes place immediately.

提出了一种用於现场测定水发食品中甲醛含量的样品快速前处理新方法，采用乙酸锌和亚铁氰化钾沉淀样品中的蛋白质和脂肪，在弱酸性介质和沸水浴条件下提取了样品中的甲醛，并与乙酰丙酮立即发生显色反应。

Methods: The protein and other impurity in the sample were precipitated by zinc acetate and potassium ferrocyanide after dipping of the sample. N,N-dichlorocyclohexylamine derived from sodium cyclamate by sodium hypochlorite in the filtrate was extracted by hexane. The HPLC separation was carried out with a phenomenex Gemini-C18 column using acetonitrile-water(7+3) or methanol-water (8+2) as mobile phase and detected by UV monitor at 314 nm. External standard method was used for quantification.

样品中甜蜜素浸提后，用乙酸锌和亚铁氰化钾试剂沉淀蛋白质等干扰杂质，过滤，用次氯酸钠将样品溶液中的甜蜜素转化为N，N-二氯环己胺经正己烷萃取后，在phenomenex Gemini-C18柱上，以乙腈－水(7+3)或甲醇－水(8+2)为流动相进行分离，HPLC-UV检测器在314 nm测定，外标法定量。

C blowing air into solution according to a certain flow rate by means of aeration mode, oxidating and breaking sulfocarbon bond, removing organic sulfur from coal, finally filtering treated coal sample and recovering alkaline solution and using it to treat the subsequent coal sample.

本发明在碱性溶液条件催化下，采用低温空气氧化的方法可以高效脱除煤中的有机硫，同时对无机硫的脱除也取得了比较好的处理效果，处理条件温和、处理费用低，同时不会对环境形成二次污染。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。