ตัวกรองผลการค้นหา
unit tensile stress
แปลว่าหน่วยแรงเครียด
unit of weight
แปลว่าหน่วยของน้ำหนัก
unit price
แปลว่าราคาต่อหน่วย
Barrel (of cement)
แปลว่า(Concrete Engineering) A unit of weight for cement: 376 Ibs net, equivalent to 4 US bags of portland cement. The designation presently used is tons of cement.
unit of pressure
แปลว่าหน่วยของกำลังอัด (อากาศ), หน่วยของกำลังดัน (กรแสไฟฟ้า)
Backoff
แปลว่าRemoval of part of coil from entry end of unit; may be necessitated by a defect in coil or by a wreck in the mill, etc. Backoff weight is the part of the coil that is removed and not finished/produced.
British Thermal Unit
แปลว่าหน่วยวัดความร้อนของอังกฤษ เท่ากับจำนวนความร้อนที่ทำให้น้ำ 1 ปอนด์ ขึ้น 1 องศาฟาเรนไฮท์ (อักษรย่อ B.T.U.)
Carbonation
แปลว่า(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%.