The comparitive determination of formaldehyde specimen shows that the aquatic determination method which applied to determine the formaldehyde in air is quicker and better 通过两种测定甲醛标样方法的比较,指出用水中测定甲醛的方法测定“空气中的甲醛”标样,测试方法更加简单、方便,结果较好。
This is better psychovisually because it means that the perceptually least valuable component of vision is quantized first . simulations were carried out w ith the shepp - logan brain phantom 在分解抽样中，使用梅花五点式的抽样方法，这种对角线方式的取浙江大学博士学位论文样方法更符合人类视觉。
" is there a faster method of drawing oil samples from splash - fed gearboxes ? i currently use the vacuum pump sampling method , and find this time - consuming when sampling many gearboxes . 求助:对于飞溅式齿轮箱有没有更快的取油样方法?我最近用真空泵在很多齿轮箱取样发现有一个问题,就是特别浪费时间呢
It is one of the largest scenic spots in siniao region . the numerical classification , analysis of species diversity and interspecific association of the forest in meizi lake area were conducted . 1 本文采用样方法，设置了14个20m 20m的样方，对梅子湖的森林植被进行了数量分类、物种多样性分析和种间联结的研究。
A set of conventional processing methods of vanadium and vanadium alloy specimens , including mechanical polishing , mechanical chemical polishing , chemical etching as well as relevant techniques and experiences is introduced 摘要介绍了一种钒及钒基合金金相试样的常规制样方法，即试样的机械磨光，机械化学抛光，化学侵蚀等技术和经验。
Management ensures the execution of centralized batch cutting and optimal algorithms are responsible for the supply of the best cutting pattern and decision support information for planning , scheduling and materials departments 即由生产管理保证“集中下料”模式的实施，优化排样方法提供最省料的方案，同时为计划、调度、材料库存提供决策支持信息。
Through observation and analysis , this paper put forward a set of definition for the sample preparation methods , and does experiments on substitute of vascular prostheses to achieve the experiments on substitute of vascular prostheses to achieve the reasonability of the testing instrument and the sample preparation method 通过观察分析，论文对制样方法提出了一些具体规定。并用人造血管的替代品对测试装置实施了实验。验证了测试装置和制样方法的合理性。
Based on plant communities and plots investigation in jinfo mt . and experimental site in guilin , the author calculated the indices of every plot with its species richness index , simpson index , shannon - wiener index , pielou evenness index and alatalo evenness index . the author analyzed the character and variation of the biodiversity in different area and different layers about the plots in jinfo mt 1采用典型样方法，在金佛山和桂林实验场选取典型样地并做野外调查，分别计算各样地的物种丰富度指数、 simpson指数、 shannon - wiener指数、均匀度指数、 pielou均匀度指数、 alatalo均匀度指数，对金佛山不同地区样地生物多样性以及不同地区不同层次生物多样性特征和变化进行分析。
