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- Weld identification single hole punch. 鉴别焊缝的单孔冲压机。
- TCP+DST+JET pumping testing technology is applicable to testing of low pressure and low permeabilityforimtions. TCP+DST+JET射流泵学升三联作测试工艺,适用于低压低渗油层的测试。
- Designed with single hole to allow you to sew a straight stitch on lightweight fabric without skipping stitches. 设计单一洞使你在轻织物上缝合平直缝针没有偏差。
- A large scale of abstracting and pumping test in the groundwater sources area of the Jily was in troduced. 摘要本文介绍了洛阳吉利区黄河滩白坡水源地地下水大型开采抽水试验。
- Wiring: All lead wires are 18 AWG, 18 inches long and exit actuator housing through a single hole designed for 1/2" conduit fittings. 线路:所有导线是18AWG,18英寸长,并且穿过设计用于1/2"导线管的单孔引到执行机构外壳外。
- Calculate aquifer properties based on pumping tests. 利用抽水试验数据计算含水层的导水性质.
- Test Method for Stitch Tear Strength Single Hole 单孔的缝合抗斯裂强度的试验方法
- This paper presents the definition of the pumping test net and its optimum design, the basic principle of the design and the mathematical model. 文中提出了抽水试验网及其优化设计的定义,网优化设计的基本原理以及数学模型。
- About 20 percent of the oil wells use rodless botttom hole pumps to exploit. 大概有20%25的油井使用无杆泵采油技术。
- Through the contrast test, the seepage coefficient from this method has the very good relevance to the conventional pumping test. 通过对比试验,该方法所测得渗透系数与常规抽水试验渗透系数数值有很好的相关性。
- This paper used earthquake technology of shallow layer and measuring technology in single hole combining means of engineering geological A structure in Humin road . 利用浅层地震技术和深孔波速测试技术,结合工程地质勘察和地质钻孔资料对沪闵路高架桥工程场地作地基评价。
- To obtain hydraulic conductivity (HC) is the basis to forecast water-gushing and HC can not be determined by pumping test on a large scale for tunnels with superthick overburden. 围岩渗透性是涌水预测的基础,对于超深隧道,不能通过大规模抽水试验来获得渗透性参数。
- For analyzing water supply capacity of the water inrush wells in the YuXin coal mine of Xingmi city,large scale pumping test were carried out as presentd in this paper. 为了给矿井设计和施工提供可靠的水文地质参数,本文利用郭屯矿井井筒检查孔抽水试验数据,根据地下水动力学原理,准确地预算出各井筒涌水量。
- The SHM (single hole microblowing) as a new perturbation active control technique has been applied to the slender body with different model noses at zero sideslip and high angle of attack. 摘要在亚临界流动范围内,对具有不同头部形状的尖拱形细长旋成体在无侧滑大迎角下进行单孔位微吹气扰动控制实验。
- A new method for calculating the aperture and roughness of fissure, and the effective radius of groundwater by using the response curve of a multistage pumping test is presented. 利用从层流到紊流的多阶段稳定压水试验的压力-流量曲线反算裂隙张开度、粗糙度及地下水影响半径等裂隙参数。
- Taking Qidong Mine as a example,based on the data about the water inrush from the fourth aquifer, the parameters are revised, which are calculated by pumping test. 分析了“底含”发育的主要影响因素,并以祁东煤矿为例,利用地下水动力学方法重新计算了“底含”的有关参数,对以往抽水试验参数进行修正,并成功地运用到邻近矿井。
- All of those above had single holes in the end that overhung the trough below. 所有木槽一端,都有个洞位于下一根木槽端的上空。
- On the basis of the similarity theory, the local impingement heat transfer coefficient of a single hole impinging on a plate in a limited space was studied with constant heat flux methods. 摘要在相似理论指导下用恒热流方法研究了封闭空间内单孔冲击局部换热系数。
- In the impingement experiments, the spray were impinged on the wall using a single hole, spray kept on moving alone the wall, and vortex was observed as a result of gas resistance and wall friction. 油束撞击到平板受到平板的限制,形成壁面喷射,油束沿壁面运动,由于受到壁面上方空气的阻力而部分油束脱离平板形成“卷毡”现象,油束卷起的高度即壁面高度远小于壁面贯穿距离。
- To evaluating the reliability of ECU, actual control test was carried out on the oil pump test bed. 为了验证电控单元实际工作的正确性,对电控单元在油泵试验台上进行了实际控制过程的试验。