Spacing of drainage ditches in field under the influence of evaporation

In addition, the influences of the diameter and spacing of reinforcing steel bars and the thickness of covers on the failure modes of the concrete covers were evaluated.

此外，分析了钢筋直径、钢筋间距和保护层厚度对保护层破坏模式的影响。

The joints between the central slab and the four side slabs can be specified either by an efficiency of shear transfer or by the size and spacing of dowel bars.

中心板与四块边板之间的联系可以由剪力传递效率，或者由传力杆的尺寸和间距来表示。

The spacing of steel bars has more important effect on the cracks then the diameter of steel.

钢筋间距对裂缝的影响较大，而钢筋直径对裂缝的影响有限；

P The spacing of bars shall be such that the concrete can be placed and compacted satisfactorily for the development of adequate bond.

钢筋间距应考虑钢筋的放置和混凝土的压实，并且混凝土和钢筋能形成足够的粘结性。

For a bundle, the rules given in8.2 for spacing of bars apply.

对于捆绑，在8.2的规则给出了钢筋间距应用。

Establishing and Calculating the Reliability Mathematical Model of K 8 Flap's Spacing Mechanism

K-8机襟翼限位机构可靠性建模及求解方法

Simulating the seeding process of seed spacing mechanism with object oriented method

用面向对象的方法进行精密播种机排种器工作过程的计算机仿真

Thermocouple-type heat sensitive cable, a new linear temperature sensor, contains a continuous pair of dissimilar thermocouple conductors, a spacing material ( insulation), an outer sheath and hermetically sealed cold end connectors.

热偶型热敏电缆由热电极、隔离材料、保护管和冷端连接件组成，具有线性结构，是一种新型的线性温度传感器。

The results show that the loss of surfactant is maximum which is about 80% injection after 1/ 5 well spacing migration, and loss of polymer and alkali are only 12% and 15% respectively.

结果表明，活性剂的损失量最大，在运移1/5井距后即损失约80%；而聚合物和碱的损失分别只有12%和15%。

Birth spacing is the age interval among the children within one family.

生育间隔，是指在同一家庭中不同儿童之间的年龄间隔。

This paper analyzes train headway in urban rail transport system, and puts forward three factors affecting train headway including safe spacing, cutoff interval and traffic flow.

通过对城市轨道交通系统中列车间隔的分析，提出了影响列车间隔的3大因素：安全间距，车站停留时间和运行裕量。

Furthermore, the processes of bolted rocks 'and tunnel rocks' deformation were simulated with ANSYS and FLAC. The regular patterns are accordant with the numerical simulated results. The theoretical guides have been provided for the bolt supporting parameters design of spacing interval and array pitch.

并使用ANSYS和FLAC分别对锚固体和巷道围岩的变形破坏过程进行了数值模拟，图像处理结果和数值模拟结果一致，为锚杆支护设计提供间距、排距的理论依据。

Based on the relationship between windbreak structure ( optical porosity) and wind reduction, the chief indices for determining spacing interval, i.e., the windbreak structure index() and the parameter of microclimate, represented by the problem wind ( Lrp), were determined.

基于林带结构（疏透度）与风速降低的关系，确定了林带主带间距离的主要参数，即，林带结构系数（δ）和以主害风为代表的小气候参数（Lrp）。

It is based on interval sequence, which is turned into a series of spacing interval sequence after accumulating procession. In this way, grey GM ( 1.1) model is established and the measures of assessing its precision are introduced.

非等间距模型是以等间距数列为基础，把非等间距数列转化为等间距数列，再进行一次累加生成处理，进而建立GM（1.1）模型，并介绍了其精度评定的方法。

With the enlargement of the columnar crystals ′ spacing interval, the positive and negative segregation extents generated by the periodic bending deformation at the liquid-solid interface of billet are enlarged.

固液界面发生周期性弯曲变形所引起的正偏析与负偏析的程度，随枝晶间距的增大而增加；

In addition, considering the spacing interval in the primary accumulating generating of primitive data sequence, a approach for establishing a GM ( 1,1) model for non-equidistant sequence was presented.

同时，对原始数据序列一次累加生成时，考虑序列的间距，提出一种建立非等间距序列GM（1,1）模型的方法。

The path length and the spacing interval distribution of neighboring scanning curves quantitatively show that the extended scanning path can adapt to surface variations and improve the coverage evenness.

路径长度和相邻扫描曲线的间距分布，定量地表明扩展扫描方式可适应曲面形状变化并提高路径覆盖均匀度。

In order to sure the train control information can be reliable two-way transmitted in any time and any location, the reasonable AP spacing interval is the design key point.

为确保列车控制信息在任何地点、任何时间的双向可靠传输，合理的AP设置间距是设计的重点。

Among these researches, more than half start from the proper road spacing interval discussion based on an given ideal square networks.

此类研究将更多的精力集中在固定理想路网条件下通过交叉口间距合理值的讨论得到路网等级配置比例。

It uses the method of average minimum train spacing interval law to calculate the every sector handling capacity of the railway from Shenyang to Shanhaiguan after raising speed.

并提出用平均最小列车间隔时间法，计算沈山线各区段提速改造后的通过能力。