查询词典 sample size
- 与 sample size 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The characterization results showed that the calcined sample in 300 ℃ was spongy structure tin dioxide with meso-porosity which was formed by accumulating nanoparticles (particle size: ca 5 nm).
结果表明,300℃焙烧处理后的样品由粒径约为5 nm的纳米粒子堆积而形成海绵状结构,其中孔的尺寸范围在2-8 nm,样品比表面积达到了134 m2·g-1。
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Surface layer of the sample consists mainly of Al2O3 and TiO2 grains with a size of 24μm.
产物的表面是以Al2O3和TiO2为主相的氧化膜,氧化物颗粒大小约为2~4μm。
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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。
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In this study,an electron microprobe analyzer was used to map the spatial distribution of "invisible" gold and submicron to micron size visible gold particles in arsenian pyrite in a high grade ore sample from the Shuiyindong Carlin-type gold deposit, Guizhou ,China.
采用电子探针背散射电子图像、波谱和能谱分析技术,对贵州水银洞卡林型金矿床原生富矿石中的含砷黄铁矿Au、As等元素含量及其分布规律进行了系统研究。
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The sample which is ground into certain size of powder is pressed to a round piece under the pressure of 300 kN, the round piece is then determined in the optimal conditions.
将研磨到一定粒度的样品在300 kN的压力下压成圆片,然后在优化的条件下进行测定。
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To check, a sample measurement on the full size gun shows it to be 8.5 from the tip of the barrel to the back of the rear sight.
检查,抽样测量对充分大小枪显示,它是8.5 从尖端桶,以后面的后方视线。
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The extremely rapid reduction in size increases the sample throughput in the laboratory and, in combination with the two-step rotor/screen pulverising system, is also said to be extremely gentle on the material.
德国Retsh公司成功研制出性能无比优越的新型超离心研磨机ZM200。据称该磨机,由于转矩的增大,从而确保性能得到提高。即使是在超载磨料时,研磨效率也非常可观。
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To coal sample in the outburst hole edge, we inferred double variable equations between σ〓 and volt V and pressure of methans P. Frequency, mineral matter, stack density, grain size and doping material would affect conductivity of coal.
对突出孔洞边缘样,导出了电导率与外电压V和瓦斯压力P的双变量方程;并讨论了频率、矿物质、堆密度、粒度和掺杂物对煤导电性的影响。
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Zhangzhou City yuanLong clocks Ltd.which is a firm specialized in the production and marketing of clocks enterprises, yuanLong clocks established in 1991, with one-stop production Danyingzhong size has many years of production experience in a variety of clocks, take all sections of sample to create business plans, work products with refined, elegant appearance, innovative, precision timing characteristics sets in arts and practical integration as a necessary feature of modern home fashion, product sales throughout the country, and sell to distant places in Southeast Asia, Europe and the United States and the Arab countries, and received by clients love.
漳州市源龙钟表有限公司是一家专业生产和销售钟表的企业,源龙钟表创建于1991年,拥有生产石英钟一条龙规模,已经有了多年的生产制造各种钟表的经验,承接各式各款来样来图制造业务,产品以其做工精细,外观高雅、新颖、计时精确等特点集艺术和实用于一体,成为现代家居时尚的必备装饰品,产品销售全国各地,及远销东南亚、欧美及阿拉伯等国家,深受客户的喜爱及好评。
- 推荐网络例句
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And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.
47:5 法老对约瑟说,你父亲和你弟兄们到你这里来了。
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Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.
提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法,同时,采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。
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Hey Big Raven, The individual lies dont matter anymore - its ALL a tissue of lies in support of...
嘿大乌鸦,个别谎言的事不要再-其所有的组织的谎言,在支持。