内螺纹管 ribbed tube ; rifled pipe ; internally ribbed tube
管子内螺纹 internal pipe thread ; IPT
内螺纹管接头 female union
圆柱内管螺纹 parallel internal pipe thread
内螺纹管接头配件 female fittings
圆锥内管螺纹 taper internal pipe thread
硬塑内螺纹管接头 hard plastic female connector
优化内螺纹管 OMLR
内螺纹管套 Ribbed tube sleeve ; Internally ribbed tube
美国标准锥管螺纹内孔 npt int
同轴、管内螺纹弹簧单导对夹式止回阀，专门用于防止水击作用和倒流现象。
The ALC? is an in-line, spring assisted, single guided "wafer" check valve designed to prevent "water hammer" and "reverse" flow.
抗腐蚀、通用和可靠的弹簧止回阀，经济型、管内螺纹，适用于大部分设备。
The DFT? Model DLC? is a corrosion resistant, dependable, versatile and economical spring assisted, in-line check valve for a wide range of applications.
本文对氟利昂22在水平光滑管和内螺纹管内的流动沸腾换热特性进行了实验研究。
Flow boiling heat transfer characteristics in horizontal smooth tubes and internal grooved tubes of R22 are experimentally investigated.
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