Repositioning the head in this "random" manner added to the total time required to complete a transaction.
用这种 “随机”方式重定位磁头增加了完成事务所需的总时间。
In testing, the client generates a pseudo-random series of requests with the query ranges adjusted to cover some portion of the total set of earthquakes.
在测试中，客户机将查询范围调整为整体地震数据集的一部分，并生成一系列伪随机请求。
Methods A total of 310 teachers from 4 middle schools in Huaibei City were selected with stratified random sampling to undergo a survey with teacher job burnout questionnaire(MBI-ES).
方法采用分层随机抽样方法，抽取安徽省淮北市4所中学的310名教师，采用教师职业倦怠量表（MBI-ES）进行调查。
The survey was completed on the basis of combining stratified sampling and random sampling, collecting 1005 valid samples in total.
调查在分层逐级抽样法与随机抽样法相结合的抽样基础完成，共收集有效样本1005个。
Usually, ionospheric Total Electron Conten (TEC) variation with time can be viewed as a stationary random process under quiet conditions.
平静状态下电离层总电子含量(TEC)随时间的变化通常可以视为平稳随机过程。
The random variable properties of total work time in the discrete stochastic manufacture systems are discussed.
并以此对离散随机制造系统总加工时间的随机变量性质进行讨论。
Result: Total polymorphic loci percentage was 96.36 and the average was 38.92.110 bands were produced with 10 random primers and 106 were polymorphic.
结果：用10个随机引物共扩出110条清晰条带，其中多态性条带为106条，总的多态位点百分率为96.36，平均多态位点百分率为38.92。
Methods In each province, 3 counties were selected at random in each prefecture, 1~3 villages were selected at random, total 30 village were selected.
方法各省在每个地级行政区划单位随机抽取3个县，每个县随机抽取1～3个行政村，全省总数不少于30个。
Methods Adopt specially designed investigation form, random samples according to GB4789.1-94 and GB4789.2-94, determining the total of bacterium and coli form.
方法采用统一设计的调查表格，按照国家标准GB4789.1- 94和GB4789.2 - 94检验方法随机抽样进行菌落总数和大肠杆菌测定。
The random storage management discusses the mathematic model of optimum order point on the minimum total cost.
仓库容量有限条件下的随机存贮管理讨论的就是使总损失费用达到最低“最优订货点”的数学模型。
Methods A total of 7482 residents aged 15-69 selected in representative 30 counties through multi-stage random sampling from Zhejiang Province were surveyed by using questionnaire.
方法采用多阶段随机抽样的方法，在浙江省有代表性的30个县区，对7482名年龄在15～69岁的居民进行面对面问卷调查。
Compared to the measurement random error (rms ) of the order of 10(-5), the total systematic error caused by the errors mentioned above can be neglect.
相对该方法的随机误差10（-5），无论线偏振器位于反射光路或入射光路中，由它产生的折射率测量误差均可忽略不计。
A new ray-tracing method - total iterative ray-tracing method in random interface is studied.
研究了一种适用于任意界面下射线追踪的新方法——整体迭代射线追踪法。
For the multiple scattering theory, the total scattered power from a random rough surface is contributed to, not only by single scattered waves, but also by those multiple scattered waves.
在多次散射理论中，随机粗糙面的总散射功率不仅与单次散射波有关，而且还取决于多次散射波。
MethodsThe total 80 patients of pulmonary tuberculosis were divided into two groups at random: the treatment group and the control group.
方法将80例肺结核患者随机分为利福平注射液组和利福平胶囊组对照，观察疗效。
According to the homogeneity test for error variance on total-effect random model with three factors in double repeated experiment, the specific formulae of test statistics and test rule are deduced.
研究两次重复试验三因子全效应随机模型误差方差的齐性检验问题，推导了检验统计量和检验规则的具体表达式。
The total dislocation length per unit volume of material, alternately, the number of dislocations that intersect a unit area of a random surface section.
在单位体积材料中包含位错的长度，或者说在材料内部任意单位截面上位错线的根数。
METHODS: a total of 283 families were investigated by random sampling, and the results of investigation were analyzed statistically.
方法采用非概率随机抽样方法，选取283户家庭进行调查，并对调查结果进行统计、分析。
METHODS: A total of 478 children at age of 9-12 years from Tulufan City and Buerjin County of Xinjiang Province were enrolled by random cluster sampling.
方法：分别在新疆吐鲁番市区和布尔津县两地采用随机整群抽样的方法，抽取9~12岁儿童478名。
Methods A total of 106 DCM patients with heart failure were allotted into trial group and control group at random.
方法将106例患者随机分为两组，在常规抗心力衰竭基础上，渝疗组加用二丁酰环磷腺苷钙静脉给药；
Methods a total of 200 patients receiving electronic gastroscopy were divided by random number table into observation group and control group, with 100 cases in each group.
方法200例接受电子胃镜检查患者，通过随机数字表法分为观察组和对照组，每组100例。
To undertake a systematic random sampling, one needs to know the total number of households, the average number of children under 5 years of age in a household, and the total population.
要进行一次系统随机抽样，必需知道人群中的家庭总数，平均每户家庭5岁以下儿童的个数，以及总人口。
Isotropic, uniformly random sections were cut from theisolated LV, and the total number of myocyte nuclei and the average number of nuclei per myocyte were estimated using unbiased stereology.
在分离的LV上以相同方向、均匀的切片，使用无偏倚的立体学方法，评估心肌细胞核总数、每个心肌细胞的细胞核数。
Methods The total 40 patients of pulmonary tuberculosis were divided into two groups at random: the treatment group and the control group.
方法采用随机对照试验，将具有明显中毒症状的40例肺结核患者随机分为痰热清组和对照组，观察痰热清的疗效。
Methods A total sampled population of 3308 from 35 selected spots in Eryuan County by random sampling were investigated.
方法采用随机抽样法在全县抽取35个自然村为调查点，每个调查点随机抽取35户居民作为调查对象。
Formal questionnaires are collected with the method of random sample, a total of 210 questionnaires are distributed, among which 180 are valid.
正式调查问卷以方便抽样的方式进行，共发放问卷210份，其中有效样本180份。
Formal questionnaires are collected with the method of random sample, a total of 210 questionnaires are distributed, among which 180 are valid.
正式调查问卷以方便抽样的方式进行，共发放问卷210份，其中有效样本180份。
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