取样

For urine specimens obtained at 21 to 32 weeks, the adjusted odds ratio for the risk of preeclampsia to begin before 37 weeks of gestation was 22.5 (95% confidence interval, 7.4-67.8) for the lowest quartile of control PlGF concentrations (18 pg/mL), compared with all other quartiles.

这项研究的限制因素，包括样本几乎是在10年前获取的；每一位女性的尿液样本只取样三次；缺乏子癫前症的类似症状资料。

Important values of plant species in each layer were measured, and richness, evenness and diversity indices of species in each layer were calculated by means of many methods. The contiguous grid quadrats were applied to sampling for field data. The methods such as S^2√x ratio ratio t-test and five aggregate indices CI, M(superscript *, PAI, CA, K were used to analyze the spatial distribution pattern of H.

测定了各层次植物物种的重要值，采用多种方法计算各层次物种的丰富度指数、均匀度指数和多样性指数，采用相邻格子样方法取样，应用方差均值比的t检验和5种典型聚集度指标方法，研究了不同生境中花棒种群的空间分布格局。

Patients' prostates were sampled at the start of the study, and then three months later to see what had changed.

在研究的初期阶段，病人的前列腺被取样，三个月后再进行对比，看有什么改变。

In the same condition of large amount of heat release and high temperature in the two combustion modes, the less soot release in premixing flame contributes to its homogeneous fuelair mixture.

采用了多孔喷射燃烧系统和伞喷燃烧系统运用缸内取样技术和火焰辐射测温技术获得了在预混合和扩散燃烧中碳粒浓度、NO〓、氧气浓度以及KL因子和火焰温度变化曲线。

The purpose of this study is to explore the subjective difficulty of clinical preceptors in student teaching and the variants of different backgrounds that might influence the subjective difficulty of clinical preceptor in student teaching. This study is a quantification study carried out by questionnaires. Research subjects of this study are care workers in two regional teaching hospitals and three medical centers in Taipei who acted as clinical preceptor responsible for at least one student nurse within recent six months. The effective response rate of questionnaire was 93.08%(out of 130 questionnaires in total).

本研究目的是探讨临床辅导员自觉的教学困难，并探讨不同背景变项会影响临床辅导员的教学困难的情形，本研究为量性研究，以问卷调查为方法，以台北县市二家区域教学医院及三家医学中心，近半年内临床工作期间担任一位以上专科层级护生实习之临床辅导员的护理人员为研究对象进行方便取样，根据自拟临床辅导员自觉教学困难问卷为研究工具，发出样本为130份，实际回收样本为123份，有效问卷回收率为93.08%。

The four high quality transformerless mic preamps and 24 bit ADC provide outstanding audio quality - better than those of most common digital recorders.

该机配有24比特处理和48kHz或96kHz可选的取样率，其音频质量可与高端制作调音台相媲美。

The contents of polyphones in the CB-1 cutters of 2 curing techniques, 3 maturities and 2 sampling ways were determined.

测定了2种烘烤工艺、3个成熟度和2种取样方式对烤烟品种翠碧1号(CB-1)中部叶烤后多酚含量的影响。

Pled,-pling 取样,抽样 I have sampled all the cakes and I like Jane's best.

我尝了所有的蛋糕，我最喜欢简的。

Inspection, sam pling and cleaning op erations using the right e quipment

使用正确的设备进行检查，取样和清洁操作

Two experimental classes are divided into experimental teaching group and controlled teaching group, with their pre-examination, after-examination, and postponed spatial ability examination results of the two groups as quantified analysis, recording the process of teaching as data for teaching activity analysis.

本研究采「实验研究法」之「不等组准实验设计」，以研究者任教之学校为样本，丛集取样二个教学实验班级进行实验组与控制组教学，搜集二组学生在空间能力测验的前测、后测及延后测成绩做为量化分析之依据；记录教学历程做为分析教学活动内涵之资料。

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。