实验法

Experiments are developed on different aspects, including the thickness of aluminum filter, choosing of the unattenuated data or not, characteristics of X-ray spectra, sensitivities to errors of attenuation data. Conclusion is that the iteration method is the best estimation technique.

以铝板作为滤波器材料，论文在滤波器厚度（包括最大厚度和最小厚度的选择）、未衰减数据的选取与舍弃、韧致辐射谱和包含特性辐射的光谱、对衰减误差的敏感性等多个层面进行仿真实验，比较分析了矩阵法和迭代法的优缺点，认为迭代法是进行光谱估计的最好方法。

Methods 40 serum samples of high, middle and low bilirubin concentration were determined by vanadic acid oxidation assay and compaired with diazo method. The precision, sensitivity, stability and interference of vanadic acid oxidation assay were analysed.

收集40例高、中、低浓度的血清样本进行钒酸氧化法与重氮法的比对，分析钒酸氧化法的精密度、灵敏度、稳定性并做干扰实验。

Using biochemical markers, microcytotoxicity test and Ouchterlony methods, the genetic character of 156 wild mice from 6 sites in 4 zoogeographical regions of China were investigated, and comparison with 8 strains of laboratory mouse were studied by authors.

本文用同工酶电泳法、微量细胞毒法和免疫双向扩散法对我国4个动物地理区的6个采集点的156个小家鼠进行了遗传特性的调查。结果发现：在全部被测的13个位点中，小家鼠在7个位点上存在着多种实验小鼠中罕见的基因组成

Presents some equations describing tracer gas concentration decay as a base for the experiment, analyses various factors influencing air changes in the room, effectiveness of the technique and its proper implementation, and concludes that the room layout and open-and-shut state of windows and doors in the space measured have a major effect on air changes.

提要 用示踪气体浓度衰减法对某会议室的自然通风作了实测研究，分析了影响换气次数的各种因素、示踪气体浓度衰减法的有效性及其正确应用。揭示出不同的房间布置及不同的门窗开启情况对换气次数有很大影响，而示踪气体浓度衰减法是对此进行实验研究的有效手段。

It was revealed that the sensitivity of dewpoint method to the freeze-drying process is high enough even if the proportion of overfilled vials is as few as 0.625% in a batch or the solution height is as low as 0.32mm.

实验结果表明露点法即使当过充小瓶率为0.625%，或者溶液高度为0.32mm时仍有足够的灵敏度，露点法得到的一次升华结束点与称重法结果一致。

First , divide the vocabulary into 5 categories (synonymy ; antonym; homophony; homomorphism; conjugate) Second, different strategies to different categories but to make the CAI visual, interesting, and systematic. The thorough strategies carried out in the experiment are as follows: Use picture-showing to differ some synonymies ; Use movie clip to learn some antonym; Use flash cartoon to create the mini-situation of homomorphism ;Use audio equipment to learn homophony; Use specific characters and design crossword to help students memorize the conjugates.

多媒体词汇教学在实践中的具体应用策略如下：近义词学习主要采用图片直观法，文本讲练法，图示辨析法，英英连线法进行实验；反义词学习主要采取下面三种形式，结合影片片段学习反义词，学生参与反义词教学，和游戏竞赛学习；形近词学习主要采取利用动画情境联想教学，利用歌曲的Flash动画学习形近词的策略；近音词、同音词学习方式主要采取利用音频手段比较学习，利用操练的形式学习近音词；同根词学习采取多变字效学习及crossword 学习的策略。

Theoretical analysis and experimental results suggest that its coding accuracy based on a N-sized codebook is comparable with that of the conventional vector quantization with a N〓-sized codebook, and much better than multi-stage VQ based on two N-sized codebooks, whereas its computational complexity is much lower than the latter ones.

理论分析和实验结果表明：码书大小为N的线上投影法的编码精度与码书大小为N〓的矢量量化法相当，并且明显优于用两个大小为N的码书构成的两级矢量量化法，而其码书生成和编码的计算复杂度远低于后者。

Theoretical analysis and experimental results suggest that its coding accuracy based on a N-sized code-book of size N N2 is comparable with that of VQ coding based on a N2-sized codebook,and much better than multi-stage VQ based on two codebooks of size N,while its computational complexity is much lower than the latter ones under equivalent accuracy obtained.

理论分析和实验结果表明：码书大小为N的线上投影法的编码精度与码书大小为N2的矢量量化法相当，并且明显优于用两个大小为N的码书构成的两级矢量量化法，而其码书生成和编码过程的计算复杂度均远远低于后者。

First, this paper reports measurements of surface tension of ionic liquid EMIES (1-ethyl-3-methylimidazolium ethyl sulfate) using the forced bubble method at 278.15 to 323.15 K and densities of EMIES using Westphal balance at 278.15 to

为此，本文以廉价工业原料合成的硫酸乙酯—1—甲基—3—乙基咪唑EMIES和对水、空气都稳定的离子液体BMIBF_4为主要对象，使用密度法和最大气泡法等实验方法对这两种离子液体及其EMIES的水溶液的性质作了如下研究工作：在278.15—338.15K范围内用Westphal天平测定了EMIES和BMIBF_4的密度，用最大气泡法测定了纯离子液体EMIES和BMIB_4的表面张力。

In the program, on theoretically we have studied the effects of configuration, the arranged periodic length and the refractive index ratio on PBG using finite difference time dormain method; on experimental, we have synthesized monodispersed silaca microspheres with size of 150-320 nm by colloidal chemical methods. And 3D perfect photonic crystals were prepared using the evaporating of acetone self-assembling the monodispersed SiO2 microspheres on quartzes by and horizontal and vertical deposition methods.

在本项目的研究中，理论上我们应用有限时阈差分法研究了光子晶体光子带隙形成与空间构型、排列的周期长度及折射率比之间的关系；实验上，我们应用胶体化学方法制备了150-320 nm的SiO2胶体微球，以丙酮为挥发溶剂，通过水平重力沉积法和垂直自然吸附法制备了各种粒度、排列完美的面心立方光子晶体。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。