孔口

A combination approach of physical and numerical models is adopted to study the hydraulic characteristics of the vertical vortex under the condition of the side orifice.

采用模型试验和数值模拟相结合的方法对侧部孔口情况下立轴旋涡的水力特性进行了研究。

In addition the pilot valve and the cutting action to minimize the risk of some special set of small-bore orifice to prevent blockage.

另外先导阀的节流和动作部分要尽量避免设置特小口径的孔口，以免堵塞。

The numerous seeds may be released through pores as in snapdragon, or by complete splitting of the capsule e.g.

果实成熟后种子可以通过孔口散出，如金鱼草，或完全通过蒴果开裂散出。

A critical review of experimental and theoretical results of standpipe and non-mechanical valves are given in detail. The measurement method on solids circulating flowrate as well as the flow property of gas-solid mixture through orifice are surveyed.

本文对迄今为止国内外对返料立管和非机械阀的研究现状和研究结果进行了详细的综述，归纳总结了实验与锅炉实际运行过程中固体颗粒循环量的测量方法以及气固混合物通过孔口的流动特性。

The experimental results showed that the diameter of orifice had a great effect on the lower limit of the hung-up regime but not on the upper limit. However, the stagnant height in hopper, the angle of hopper, the length and diameter of standpipe had influence on the upper limit but not the lower limit.

实验结果表明：立管底部孔口大小对于悬料区的下限有影响，而对上限无影响；相反，漏斗中的物料高度、漏斗的锥度、立管长度和立管直径对悬料区的操作有很大影响。

By traditional method of design, the elastic theory is adopted to calculate stress distribution, and the amount of reinforcing bars for the orifice is determined according to the diagram of tensile stress.

这种方法不能反映混凝土和钢筋两种材料的非线性性质以及混凝土开裂后引起的应力重分布，并且不能有效地控制孔口的开裂，按照此方法计算的配筋量往往偏大。

In order to research technical parameters and irrigation indexes of partial rootzone non-pressure subirrigation, the law of outlet flow rate at different aperture diameters and the soil water status were analyzed through cucumber experiment in greenhouse.

为了探明根区局部控水无压地下灌溉技术参数和指标，通过在蔬菜大棚中种植黄瓜的试验，研究分析了在不同供水压力条件下的孔口出水规律和根区局部湿润状况。

Non-pressure subirrigation ; aperture outflow ; soil water content ; cucumber

无压地下灌溉；孔口出水；土壤水分；黄瓜试验

The test indicates that the hole is unruffled and that the delamination, napping and breakup can be avoided.

试验结果表明：孔口平整，有效避免了构件材料的分层、拉毛和崩豁等加工缺陷。

Combined with practical work and based upon analysis of advanced water prospecting advanced pre-grouting reinforcement scheme is proposed;at the same time practical construction technology is elaborated from construction of sealing batholite ,reinforcement range of curtain grouting,embedment of pipe,grouting construction process and other aspects.

结合工程概况，通过对超前探水情况的分析，提出采用超前预注浆的加固方案，并从止浆墙或止浆岩盘的施作、帷幕注浆的加固范围、孔口管的埋设、注浆施工过程等方面阐述了其施工技术，最后对注浆效果进行了检查评定，为今后类似工程的施工提供参考依据。

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％。