管嘴

The actual production needs from oil field,aimed at tractor hoist that need replace pipe string and outside slippery jet pump that isn′t satisfied with discharge fracturing quickly in reality,a new type of jet pump inside sleeve type of jet pump is designed.

针对外滑套式射流泵在油田应用中不能满足压裂后快速排液的现况，研制出了一种新型的内滑套式射流泵，并提出了射流泵、喉嘴距、喉管长度、扩散管角度及长度的计算公式。

Therefore,there are very important theoretical and practical value on study and analysis of the square bird-beak SHS joint.

因此，对方管&鸟嘴&型相贯节点进行深进研究具有明显的理论意义和清楚的工程实用背景。

Yangtze River glacier retreat has little to do with human factors Yangtze River glacier retreat has little to do with human factors Shangguan Dong-hui said that the short term, the glacier melt water to the Yangtze River has brought plenty of water, the surface, in the Northwest seems to be a good thing, but this supply led to the uneven seasonal river runoff in winter The early release of melt water, resulting in spring flood summer drought.

Yangtze River glacier retreat has little to do with human factors ；是由上海埃非凯阀门有限公司提供的阀门新闻，中文译文仅供参考(上海埃非凯阀门有限公司还生产疏水阀隔膜阀旋塞阀柱塞阀鸭嘴阀及电动调速蝶阀，气动通风蝶阀，美标波纹管闸阀，c，平行式双闸板闸阀，欢迎您的选购。)长江源冰川的退缩与人为因素关系不大上官冬辉说，短期内，冰川的融水给长江带来了充沛的水量，表面上看，对西北地区似乎是一件好事，但是，这种补给导致江河的径流量季节性不均，冬季的融水提前释放，从而造成春汛夏旱。

Founded in 1990, specializing in the production of bronze pieces, bronze valves, brass valves, yellow brass pieces, Shuizui, stainless steel pipe fittings and accessories, such as plumbing.

公司创建于1990年，专业生产青铜管件、青铜阀门、黄铜阀门、黄铜管件、水嘴、不锈钢管件及水暖配件等。

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％。