head valve是什么意思

网络释义

用法例句

ntf,a model of manual set-to-top and auto set-to-top is put forward.

为了丰富Lotus Domino/Notes的讨论模板数据库,并提供流行的主题置顶功能,提出了基于讨论模板数据库的手动和自动置顶的工作模型。

Fatigue life prediction of clack box of bell-less top of large blast furnace based on thermal-structural coupling

基于热-结构耦合的高炉无钟炉顶阀箱疲劳寿命预测

Parameters Design of Top Valve in Water Drainage and Gas Production by Gas-Lift Considering Formation Absorbing Liquid

考虑地层吸液条件下气举排水采气顶阀参数设计

Installing a backflow preventer in a pit or vault is not recommended.

不建议在坑内或拱顶内安装防回流阀。

Open the inlet water valve and press the top discharge valve to discharge the air in the filter at the same time.

打开进水阀门，同时按下顶上排气阀，使滤器内空气排出即可。

The metal diaphragms act as the seal at the top of the valve. The primary improvement in this generation of valves is the elimination of the spring used to open the valve.

金属横膈膜在阀门的顶部作为密封。这一代阀门的主要的改进是取消了用于开启阀门的弹簧。

The assembly shall also include two resilient seated isolation valves, four top-mounted resilient seated test cocks and an air gap drain fitting.

这种总成应该包括两个弹性阀座隔离阀，四个顶部安装弹性阀座测试旋塞和一个气隙排放接头。

Knife Gate valves should preferably not be opened or closed against pressure.

刀闸阀不适合顶着压力进行开启或关闭。

All parts are accessible from the top for easy servicing.

从阀门顶部能够接触到所有的部件，便于维修。

Testing of Material Theottle Valve in no Bell Top of No.11 BF of Masteel

马钢11~#号高炉无料钟炉顶节流阀开度的测试

Heat installation continues rising, condenser water drops to the temperature of drainage, temperature-sensing component in top material will minify with cold, leave port A, drawoff the condense water quickly.

温度继续升高，阀内温度超过该阀感温元件所排水温度时，顶杆的位移使A口关闭。

Slightly open shutoff valve No.1 and allow water to fill the tube to the top then close No.1 shutoff.

稍微开启关闭阀1号，将水注入管子直到顶部为止，然后关闭1号关闭阀。

"The top flange of an extension stem, plug shaft diameter, and distance across flats on plug shaft are the same size as the valve selected."

延长阀杆的顶部法兰、塞轴直径、和塞轴上的平台两边距离应该与所选择的阀门尺寸相同。

Remove the four front panel screws; two at the top flange. Check drain valve to make sure that it is closed.

把四个前面板螺丝和两个顶部法兰上的螺丝卸下来。检验排水阀,确保排水阀处于关闭状态。

"This allows interchangeability of gear operators, actuators, and adapter bushings from valve mounting flange to extension stem top flange."

因此,蜗轮操作装置、驱动装置和衬套接头可以从阀门安装法兰上替换到阀杆延长件顶部法兰上。

A belt typically is used on engines with overhead-cam valve trains.

皮带一般与顶置凸轮阀门传动一起被用在发动机上。

"To take out Valve, put a 1.5 to 3 mm dia. wire with its end hooked into the hole"

将一根直径1.5to3mm,顶端成弯钩状的铁丝伸进孔内,以便取出阀门,

From the top of the air gap, thread the relief valve hose down and out the slot.

从气隙顶部，将安全阀软管螺纹旋下来，并拉出沟槽。

Valves in modern car engines are located in the cylinder head at the top of the engine.

现代汽车发动机里的阀门位于发动机顶上的汽缸盖。