步量

Chapter six presents a two-waves sampling method to estimate a distribution function of a discrete random variable Y.

第六章研究在数据缺失机制形式未知时，通过两步抽样得到了分布函数的相合的估计量，且该估计量是渐近正态的。

And call it the craft course. In the course of making the craft , is it confirm every erector location and worker step that process need this of process to want, the locomotive of processing , this process , and the entering the giving amount of the lathe, cut

在制定工艺过程中，要确定各工序的加工顺序和该工序需要的工步，加工该工序的机车及机床的进给量，切削深度，主轴转速和切削速度，该工序的夹具，刀具及量具，还有走刀次数和走刀长度，最后计算该工序的基本时间，辅助时间和工作地服务时间。

Decision-making of ballast water adjustment of floating dock is studied as a two-step optimization problem. Two mathematical models are constructed for minimizing the ballast water adjustment quantity of every tank needed and the trim of the floating dock respectively.

将调节浮船坞浮态的调水计划决策问题归结为调节量优化和调水时间优化两步优化问题，分别提出了有约束问题的优化模型并详细介绍了应用惩罚函数法对优化问题进行求解的方法。

Uroflowmetry and residual urine volume determination are the first steps in assessment of patients suspected to have pelvic floor hypertonicity.

对於骨盆底张力过高的病人，我们第一步检查应该进行尿流速及使用腹部超音波做残尿量之测定。

The results showed that P51 was expressed as inclusion body, and represented about 50% of total cellular protein. After purification and renaturation, the purity of P51 was up to 95%.

结果显示P51以包涵体的形式表达，表达量占菌体总蛋白的50％，经两步层析和透析复性，目的蛋白纯度大于95％。

Objective To improve five-step iodometry method for measuring chlorine dioxide in order to measure chlorine dioxide in disinfectants more accurately.

目的改进五步碘量法对二氧化氯测定方法，以便更准确地检测消毒剂中二氧化氯含量。

The content of two chlorine dioxide products was measured with " five-step iodometry " in laboratory in order to know the factors influencing the accuracy of measurement by this method and to improve it.

在实验室用"五步碘量法"测定两种二氧化氯产品含量，以了解影响该方法测定准确性的因素并进行改进。

The content of two chlorine dioxide products was measured with "five-step iodometry" in laboratory in order to know the factors influencing the accuracy of measurement by this method and to improve it.

提要： 在实验室用"王步碘量法"测定两种二氧化氯产品含量，以了解影响该方法测定准确性的因素并进行改进。

At the same time, considering the jumpiness or incline caused inaccuracy and pretermission when the capsule moving ahead, two couples of infrared ray and electron transducer were designed to detect the light signal of the corresponding parts of the capsule. After the addition operation compensation and differential coefficient, turning the little different simulation signals of the body and cap of the capsule into digital signals for detection. It is more accurate for detection and stable to the disturbance. Step electromotor was used for the capsules direction turning which solved this problem efficiently. The capsules were ranged in order according to their colors with the cap at the same direction.

同时考虑到胶囊行进过程中跳动、倾斜及随机干扰造成的误判、漏判，设计了两对红外光电传感器用以同时检测胶囊上下两个边缘部位的光信号，两个检测信号经加法运算补偿、微分运算处理，将体现胶囊的帽、体微小几何尺寸差别特征的弱模拟信号直接转变成数字量检测，提高了检测的准确率及抗干扰能力，并由步进电机控制胶囊掉头，有效地解决了胶囊体、帽的位置调整，分色调头排列，达到帽、体一致。

Our country firstly put forward such design principle of Qinghai-Tibet railway engineering as "lower temperature actively, reduce the heat into the subsoil, and assure the heat stability of frozen earth for the quality stability of construction", creatively adopt such corresponding measures of frozen earth construction problem as: for the poor frozen earth developing section, line should avoid as possible;for the geology of ice at high temperature and unstable frozen earth zone, the method of bridge instead of subgrade shall be adopted;in subgradeconstruction, such facilities as heat stick, rubble ventilation subgrade , rubble ventilation berm, ventilation pipe subgrade and laying heat preservation board etc shall be adopted to raise the stability of frozen earth subgrade;during the excavation of bridge, culvert , foundation pit and scouring prevention trough, creatively adopt single-tooth knapper and solve the problem of frozen earth excavation;during the construction of bridge and culvert, durable concrete and three-step maintenance method are adopted to assure the outside and inside beauty of structure.

我国在世界上首次提出"主动降温、减少传入地基土的热量、保证多年冻土的热稳定性，从而保证修筑在上面的工程质量的稳定性"的青藏铁路工程设计原则，创造性地采取了解决冻土施工难题的相应对策：对于不良冻土现象发育地段、线路尽量绕避；对于高温极不稳定冻土区的高含冰量地质，采取"以桥代路"的办法；在路基施工中采用了热棒、片石通风路基、片石通风护道、通风管路基、铺设保温板等多项设施，提高冻土路基的稳定性；在桥涵基坑、挡水埝基槽开挖中，创造性地应用了单齿破碎器，解决了冻土开挖难题；在桥涵工程施工中，采用了耐久性混凝土，采用了三步养生法，保证了结构物内实外美。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。