ตัวกรองผลการค้นหา
คลิกที่แต่ละคำเพื่อดูรายละเอียด
การตกลงอย่างฉันท์มิตร
(Environmental Engineering) The destruction or inactivation of all microorganisms. See Disinfection.
เกี่ยวกับเศรษฐกิจ
วิศวกรเคมี
(Environmental Engineering) Two or more different compounds with the same chemical formula but different structure and characteristics.
(การบิน) อัตราความเร็วที่ประหยัดเชื้อเพลิง
(ไฟฟ้า) หนึ่งในล้านโวลท์
(english) "WHAT A pear-shaped furnace, lined with refractory bricks, that refines molten iron from the blast furnace and scrap into steel. Up to 30% of the charge into the BOF can be scrap, with hot metal accounting for the rest. WHY BOFs, which can refine a heat (batch) of steel in less than 45 minutes, replaced open-hearth furnaces in the 1950s; the latter required five to six hours to process the metal. The BOF's rapid operation, lower cost and ease of control give it a distinct advantage over previous methods. HOW Scrap is dumped into the furnace vessel, followed by the hot metal from the blast furnace. A lance is lowered from above, through which blows a high-pressure stream of oxygen to cause chemical reactions that separate impurities as fumes or slag. Once refined, the liquid steel and slag are poured into separate containers. "
(english) Chemical Symbol Zn. Element No. 30 of the periodic system; atomic weight 65.38. Blue-white metal; when pure, malleable and ductile even at ordinary temperatures; melting point 787 (degrees) F.; boiling point 1665 (degrees) F., specific gravity 7.14. Can be electrodeposited; it is extensively used as a coating for steel and sheet zinc finds many outlets, such as dry batteries, etc. Zinc-base alloys are of great importance in die casting. Its most important alloy is brass.
หินขัด, หินสำหรับเจียระไน
(english) Equilibrium which includes inertial forces.
(english) Chemical symbol for Beryllium