| ภาคีวิศวกร (ชาวบ้าน) |
First level (engineer) - บริษัทฝรั่งเรียก |
| สามัญวิศวกร (ชาวบ้าน) |
Second level (engineer) - บริษัทฝรั่งเรียก |
| วุฒิวิศวกร (ชาวบ้าน) |
Third level (engineer) - บริษัทฝรั่งเรียก |
| ภาคีวิศวกรสาขาโยธา |
Associate Civil Engineer
|
| B Elevation |
(english) The bottom level of the boiler firebox where two oil guns are located. The oil guns are used if the boiler needs extra steam while on oil fire. |
| Back Draft |
(english) Reverse taper which would prevent removal of a pattern from a mold or a core from a corebox. |
| Back Gears |
(english) Gears fitted to a machine to increase the number of spindle speeds obtainable with a cone or step pulley belt drive. |
| BACK PRESSURE |
(english) The level of pressure on the return or downstream side of a device or system. |
| Back Rake |
(english) The angular surface ground back from the cutting edge of cutting tools. On lathe cutting tools. The rake is positive if the face slopws down from the cutting edge toward the shank, and negative if the face sloopes upward toward the shank. |
| BACK-UP RING |
(english) A fabric or plastic device that is used with an o-ring or other gasket to prevent extrusion of the o-ring or gasket into an adjacent space or crevice |
