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Catalytic Reforming in the whole paragraph Prehydrogenation variables controlled reactor inlet temperature, pressure and separation of liquid level tank, stripper pressure and liquid level, liquid level back to tank, furnace exit temperature.

在整套催化重整预加氢段中的受控变量有反应器的入口温度、分离罐的压力和液位、汽提塔的压力和液位、回流罐的液位、加热炉出口温度。

A method is hence proposed to prevent the fault by setting a surge arrester at inlet side of circuit breaker,or setting a surge arrester with gap at line terminal tower if there isn't a position for setting the arrester within substation.

探讨了断路器的性能、现行有关标准和规程的适用性，得出解决故障可采取的措施：在断路器的进线侧安装避雷器，如变电站内无安装位置的话，可在线路终端塔上安装带间隙的线路避雷器。

In the suction stroke air is sucked into the cylinder through an inlet valve.

在吸气冲程，空气通过一个进气阀被吸入到气缸。

Raw water suction and straining: This is done by a submersible pump complete with the suction hose and inlet strainer of approximately 2 mm openings.

原水抽取和过滤：设备包括：潜水泵及其吸水软管和进水过滤网，筛孔尺寸为2mm

The pumps with different structural parameters are simulated numerically using k-ε model and wall functions. The results showed that the number of nozzles, the nozzle angle and the nozzle-to-throat clearance have a great influence on the performance of jet pump, and the turbulent kinetic energy is greater in suction chamber and in inlet of throat.

采用k-ε湍流模型和壁面函数法对不同参数下的多喷嘴射流泵进行了数值模拟，模拟结果表明，喷嘴数和喷嘴角度及喉嘴距对射流泵工作性能影响较大；在吸入室及喉管入口处湍动能较大。

Figure 1 compressor, figure2 working fluid, figure3 condenser, figure4 water, figure 5 ore, figure6 inlet, figure7 outlet pipe, figure8 expansion valve, figure9 evaporator, figure10 health-care recipe stone, figure11 metal wire, figure12 water tank, figure13 refrigerator.

附图1是压缩机，2是工质，3是冷凝器，4是水，5是矿石，6是进水管，7是出水管，8是膨胀阀，9是蒸发器，10是保健配方石，11是金属丝，12是水箱，13是冰箱。

The optimization of the layout of the stilling well was also studied. The results show that the sudden enlargement between the circular inlet and the shaft in this spillway is significantly different from the traditional face-stuck shaft. This can prevent cavitation of the vertical shaft by high-velocity flow, reducing the difficulty of construction.

研究表明，该溢洪道自环形进水口以下采用突扩方式与竖井连接所形成的脱壁水流结构，与传统的贴壁式竖井的水流结构具有明显不同，不仅可以有效避免竖井段因水流流速较高可能造成的空化空蚀破坏，降低施工难度，而且有利于水舌掺气并促进消力井消能。

In the steam injector with pressure-gain, the water gains pressure by the power of steam. The outlet water pressure is higher than the inlet steam pressure.

增压引射器利用蒸汽作为动力使水增压，让出口水的压力超过入口蒸汽的压力。

The result showed that the prepared catalyst can be used for naphtha feed at a steam/carbon mole ratio of 1.5～2.5, a inlet temperature of 350～450 ℃, a pressure of 2.0～5.0 MPa and a space velocity of 4.0 h -1 to produce a methane content of 60～65v% gas.

结果表明，该催化剂适于以轻油为原料，在水碳摩尔比 1 。5～ 2 。5、入口温度 350～ 450℃、压力 2 。0～ 5.0MPa和空速 4.0h- 1 的条件下，生成含甲烷为 60 %～ 65%的富甲烷气。

The air percentage of total steam flow weight at condenser inlet is generally less than 0.01% and can be ignored.

在凝汽器进口处，空气在总汽流中所占的重量百分比一般不大于0.01%，可以忽略不计。

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。