| Bench Work | (english) Work done primarily at a bench with hand tools. Occasionlly suplemented by small power-driven tools. |
| Brake | (english) A piece of equipment used for bending sheet; also called a bar folder. If operated manually, it is called a hand brake; if power driven, it is called a press brake. |
| Zirconium | (english) Silvery-white, metallic element, mp 1860 B0C (3380 B0F), a powerful deoxidizer when added to molten steel. |
| Carbonation | (Concrete Engineering) 1) Reaction between the products of portland cement (soluble calcium hydroxides), water and carbon dioxide to produce insoluble calcium carbonate (efflorescence). 2) Soft white, chalky surface dusting of freshly placed, unhardened concrete caused by carbon dioxide from unvented heaters or gasoline powered equipment in an enclosed space. 3) Carbonated, dense, impermeable to absorption, top layer of the surface of concrete caused by surface reaction to carbon dioxide. This carbonated layer becomes denser and deeper over a period of time. 4) Reaction with carbon dioxide which produces a slight shrinkage in concrete. Improves chemical stability. Concrete masonry units during manufacturing may be deliberately exposed to carbon dioxide after reaching 80% strength to induce carbonation shrinkage to make the units more dimensionally stable. Future drying shrinkage is reduced by as much as 30%. |
| power folat | เครื่องไล้คอนกรีต |
| candle-power | หน่วยวัดแสงสว่างเท่ากับแรงเทียน |
| horse-power | แรงม้า (กำลังของเครื่องยนต์) |
| power-house | โรงไฟฟ้า |
| power-line | สายกำลังกระแสไฟฟ้า จากโรงไฟฟ้า |
| power-main | สายไฟฟ้าขนาดใหญ่ ที่ติดตั้งอยู่ตามถนน |