油嘴的

Excessive formation back pressure may be due to limited or plugged perforations; subsurface or surface chokes; undersized gas-oil separator, flowlines, tubing, or casing; or excessive back pressure on flowline, casinghead gas gathering system, or gasoil separator.

183u 译文：过高的地层回压也许是由于有限的或堵塞的射孔孔眼；井下或地面油嘴；尺寸不足的气液分离器，流动管线，油管或套管；流动管线，套管头气体集输管线或气，油分离器上过高的回压。

The Beili series HM1860 and HM1860J horizontal honing machine play an important role in the automobile, motorcycle, sewing machine, hydraulic pressure vapour, decelerator, mold, oil pumping, engine and other inner hole finishing industry because of its high accuracy, high efficiency, suitability and easy operation characteristics.

我公司&倍力&系列HM1860，HM1860J卧式珩磨机以其高精度、高效率，适用性广和操作简单等特点，在汽车、摩托车、缝纫机、液压气动、减速器、模具，油泵油嘴，内燃机等内孔精加工领域发挥著越来越大的作用，逐步替代了中小孔内圆磨和研磨的工序，替用户提高了效率，节约了成本，受到广大企业的欢迎。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。