| pressure gauge | มาตรวัดความดัน |
| pressure head | ระดับความดัน (ในรูปของความสูงน้ำ) |
| pressuremeter | เครื่องวัดหน่วยแรงและคุณสมบัติดินในหลุมเจาะ |
| pressure pile | เสาเข็มลมอัด |
| pressure vessel | ถังบรรจุของเหลว |
| A Elevation | (English) The top level of the boiler firebox where four oil guns are located. The oil guns are used to produce steam and maintain pressure while the boiler is on oil fire. |
| ABSOLUTE PRESSURE | (english) The indicated value of the weight of the earth's atmosphere. At sea level, this value is approximately 14.65 psi (pounds per square inch). |
| BACK PRESSURE | (english) The level of pressure on the return or downstream side of a device or system. |
| Back-up Roll | (english) 1) Roll used as a support roll mainly for plater rolls. 2) Two rolls, one on top and one on bottom of the two work rolls which apply pressure and reduce the flexing of the work rolls. |
| Backer (back-up plate) | (english) A “tool” or reinforcing part, which presses against the outer surface of an extrusion die, supporting it against the pressure of the extruding metal. The backer has an opening larger than the die aperture, allowing the extruded product to emerge without marring its soft surface. |