孔口

Based on theoretical and experimental research on material characters of steel fibered reinforced concrete, a finite element model for nonlinear analysis of steel fiber reinforced structures is presented.

6根据已有的钢纤维混凝土基本理论和试验研究成果，建立了钢纤维混凝土的有限元模型，对小湾拱坝的1〓底孔断面进行了非线性分析，研究了采用不同厚度的钢纤维混凝土增强层和不同掺量的钢纤维对孔口抗裂、限裂性能的影响。

Based on the hydraulics theory a research has been made on change of hydraulic head and discharge through orifice in filter underdrain system,and some mistakes have been illustrated in reference.

运用水力学原理，对滤池配水系统中水头和孔口出流量的变化进行了研究，并指出文献［1］、［2］、［3］对该问题的错误所在

From analyzing the drip irrigation emitter types and choosing in experiment, the main conclusions are as follows: The best type of subsurface drip irrigation emitter is drip pipe. Under lower water press the stabilization discharge of orifice emitter in soil is three fifth of that in air, which can meet the request of subsurface drip irrigation.

通过对现有滴灌灌水器类型的分析及试验筛选，结果表明，内镶式滴灌管最适宜应用于地下滴灌，在低压运行时，孔口式滴头在土壤中稳定出流量为空气中的 3/ 5 ，基本可以满足地下滴灌的要求；在较高供水压力时，所选取的几种滴头基本上都可以用于地下滴灌。

The mouth of the pipe should be cleaned of its burs with grinding machine.

4.5 被加工的管子孔口内的毛刺用角磨机打磨。

The mo u th of the pipe should be cleaned of its burs with grinding machine .

4.5被加工的管子孔口内的毛刺用角磨机打磨。

12 Pilot Flame Setup 试点火焰设置 4.12.1 4.12.2 4.12.3 Page 10 Set the pilot gas pressure regulator in a mid-position (adjust screw c/wise to increase), and make sure that the pilot gas orifice screw is open 2 turns.

把气体压力调整器设置在中间位置，并且把气路孔口螺栓放松 2 圈。

Although not absolutely necessary, this may be accomplished by removing the gauge taking care not to lose oil, then using a syringe to insert oil into the gauge orifice, then re-installing.

虽然不是绝对必要的，这可能是完成了取消衡量照顾不要失去石油，然后用注射器插入油压力计孔口，然后再重新安装。

The study result indicated that the free vibration of the dam will be affect by opened hollow and pier added on dam.

研究表明考虑孔口和闸墩对大坝的自振特性有一定的影响。

For vibration mode-shape, this affect is moreseverity on high rank stage vibration than low. With opened hollow and pier added on dam,the frequency of vibration decline.

对于振型而言，这种影响对低阶振型比高阶振型大，考虑孔口和闸墩后，大坝的自振频率有所降低；在低阶振型中有一部分的排列顺序发生了变化，但这些变化不致使大坝的动力特性发生显著的改变。

The loop flushing relief valve poppet includes an orifice which controls flushing flow under most conditions.

河套法拉盛包括减免可爱孔口控制阀冲在最流通的条件。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。