The characteristic of piping design is standardization and in series,and the standardization of the series of nominal diameter,outside diameter and thickness of pipe is the basis of the standardization of pipe fittings.
其中管道公称直径、外径和壁厚系列的标准化是管道元件标准化的基础。
Nominal size for pipe components
GB/T1047-1995管道元件的公称通径
Normal diameters for ventilation pipe line and accessories for ships metric series
GB/T1560-1979船用通风系统管路和附件的公称通径
Nominal size of the pipeline into which the valve will be placed must be determined.
必须确定与阀门连接的管道的公称通径
Same as the nominal size of the pipe into which the valve will be installed.
与阀门将要安装的管道的公称通径相同。
"Specify valve size, figure number and length to be added to existing stem length (dimension a)."
请说明阀门的公称通径、型号和加在现有阀杆上的长度(尺寸"a")。
"Lever-lock handles are not recommended for use on 8"and larger valves."
建议不要在公称通径大于8英寸的阀门上使用杠杆固定锁手柄。
NOTE: On one inch and large valves, it is difficult to bring the whole joint up to temperature at one time
注：对于1英寸或更大公称通径的阀门，一次性将连接部件加热到所需温度比较困难。
"Butterfly Valves 2"-12"shall be of the flangeless type, both lug and wafer styles."
2至12英寸公称通径的蝶阀是无法兰类型,但都有平板型和吊耳型两种类型。
This information is then applied to the flow rates on the following chart to determine proper valve size.
然后,根据这些数据结合流量比率在的流量表中选择适当的公称通径的阀门。
"On one inch and large valves, it is difficult to bring the whole joint up to temperature at one time."
对于1英寸或更大公称通径的阀门,一次性将连接部件加热到所需温度比较困难。
One reason for this statement is the procedure required to select the proper size stop-check for a given installation.
原因之一在于针对某个特定的安装方式来选择适当的公称通径的自动阻断止回角阀的方法比较复杂。
nominal cartridge diameter of microphone
传声器极头公称直径
Nominal volume and nominal diameter for glass-lined vessel
GB/T7996-1987搪玻璃容器公称容积与公称直径
Nominal diameter of pressure vessel
GB/T9019-1988压力容器公称直径
Ball screws--Part 2: Nominal diameters and nominal leads--Metric series
GB/T17587.2-1998滚珠丝杠副第2部分:公称直径和公称导程公制系列
Thermoplastic pipes--Nominal outside diameters and nominal pressures--Metric series
GB/T4217-1984热塑性塑料管材的公称外径和公称压力(公制系列)
The Testing for Symmetry and Volatility in Inflation Path of China s Economy;
我国通货膨胀路径的对称性和波动性分析
The "basic"type of capital stock issued by every corporation often is called common stock.
每个公司发行股本的"基本"类型通常称为普通股。