流控制

In comparison with bugle shaped nozzle, bifurcated nozzle downward jet angle 45°, cow-nose nozzle and three-hole nozzle, in all, the last two are better than the former and bifurcated nozzle downward jet angle 45 is better than bugle shaped nozzle; Cow-nose nozzle is helpful for guaranteeing the product"s quality, in order to protect jet flow from eroding the strand at narrow face, gain uniform temperature distribution at cross section and decrease heat flux, adding the block"s width to 100 mm. Three-hole nozzle is advantageous to increase flux and casting speed, but should avoid weak shell thickness in the center broad. In the real production, setting the SENs immersed depth or plugging the hole at the bottom can adjust the flow and temperature distribution in the mold.

对比喇叭形水口，双侧孔水口(45°)，牛鼻子水口和三孔水口，总的说来后两者优于前两者；而双侧孔水口(45°)又优于喇叭形水口；牛鼻子水口和三孔水口比较各有特点，前者对保证铸坯质量有利，为防止流股对窄面的冲击，增加挡块宽度到100 mm，可使结晶器横截面上温度分布更加均匀，降低窄面热负荷；后者对增加流量，提高拉速非常有利，但要防止中孔射流过强导致铸坯中心坯壳变薄，在实际生产中可通过控制水口浸入深度或塞住浸入式水口的底孔来调节结晶器中的流动与温度分布状态。

In this study, the simulator was applied to square-cup deep-drawing process, using 36 blank holder modules with 3 embedded hydraulic cylinders, that is, a total of 108 segment blank holding actuators were employed for controlling the material flow of blank into the die cavity.

在这项研究中，这个模拟器是用于制造过程的基础上，利用square-cup 36边模块3嵌入式液压缸，也就是说，共108段压致动器是用来控制物料流进模具型腔的空白。

The developing direction of current laser switch mode power supply is being digital, being intelligentized, being high-frequency and being modularized.

现在的激光开关电源的发展趋势是数字化、智能化、高频化和模块化，因此，本课题选择以单片机为核心研制出一套高功率轴快流CO_2激光器的开关电源控制系统。

The control system hardware is studied, including the TMS320C31-based digital signal processor board, constant current source, displacement data collected channel.

对控制系统的硬件进行了研究，包括TMS320C31控制板，数控恒流源和位移数据采集通道。

Backwash flow control of correct size in valve drain line.

反流流动对在阀门排水管线中恰当大小的控制。3。

Objective To study the effect of the low negative pressure drainage by tubing through anal canal in patients of fecal incontinence.

彭雅君 ，李小珍，郑碧霞目的探讨低负压引流在大便失禁中的有效控制方法。

The drum,screw, screen changer and die head are made of high quality alloyed steel (38CrMOAIA) with high hardness, strong corrosion resistance and long operating life after nitrogen treatment.

螺杆、料筒、换网器、模头均选用优质合金钢（38CrMoAIA），经氮化处理，硬度高、防腐能力强、使用寿命长；模头为衣架式支管递减型，流道利于熔料流动、无滞留现象，片材厚度均匀；压光琨内采用螺旋往复式水槽，水循环冷却，效果极佳；模头、换网器、料筒温度分段控制，整机传动同步运行。

There is eddy piece in drying chamber. It can control moisture of material at lowest level.

干燥室内设置旋流片，以控制物料水份达到极低水平。

There is a rotary disc inside the drying chamber to control the water content within limitation.

干燥室内置旋流片，以控制物料水份达到极低水平。

We contribute the arduous labor, the resources and environment, but an even larger amount of profits flowed into the purse of the Euro-American boss because they control the key technique and money.

我们付出的是艰辛的劳动，付出的是资源与环境的代价，依旧是打工崽的命运，大量的利润流进了欧美老板的腰包―就因为他们控制着关键的技术与金钱。

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％。