ผลการค้นหา

ค้นเจอ 220 รายการ

acetylene generator

(การเชื่อมต่อ) ท่อหรือหลอดบรจุแก๊สเชื่อมโลหะ ซึ่งมีความอัดดันสูง ปฏิกิริยาของน้ำกับ calcium carbide เป็นตัวการทำให้เกิด acelyiene gas

Chemical oxygen demand (COD)

(Environmental Engineering) The amount of oxygen required to oxidize any organic matter in the water using harsh chemical conditions.

Hydrologic Cycle

(Concrete Engineering) The Hydrologic Cycle consists of the evaporation of water from oceans and other bodies of open water; condensation to produce cloud formations; precipitation of rain, snow, sleet or hail upon land surfaces; dissipation of rain or melted solids by direct run-off into lakes and by seepage into the soil. Thereby producing a continuing endless source of water in the sub-grade.

Biochemical oxygen demand (BOD)

(Environmental Engineering) The amount of oxygen required to oxidize any organic matter present in a water during a specified period of time, usually 5 days. It is an indirect measure of the amount of organic matter present in a water.

Condensation

(Concrete Engineering) When a moisture laden gas comes in contact with a cooler surface a change of state from gaseous to liquid occurs.

Blowhole 2

(english) A cavity which was produced during the solidification of metal by evolved gas, which in failing to escape is held in pockets.

Effluent based standards

(Environmental Engineering) Standards which set concentration or mass per time limits on the effluent being discharged to a receiving water.

Boiler

(english) A closed vessel in which water, is transformed into steam at a given pressure and temperature under controlled conditions.

cutting compound

สิ่งที่ผสมที่ใช้หยอดในเครื่องจักรมิให้ร้อนจัดเมื่อมีการเสียดสี, มักจะใช้ Lard oil ผสมกับ Sola Water หรือสิ่งอื่นๆ ที่ช่วยให้มีความยั่งยืน

Volatile solids

(Environmental Engineering) (VS) is the amount of matter which volatilizes (or burns) when a water sample is heated to 550EC.Volatile suspended solids

NPDES

(Environmental Engineering) The National Pollutant Discharge Elimination System. The discharge criteria and permitting system established by the U.S. EPA as a result of the Clean Water Act and its subsequent amendments or the permit required by each discharger as a result of the Clean Water Act.

Vaporproof

(Concrete Engineering) A material that is totally immune to the passage of a gas under pressure. Any material that is truly vaporproof will inherently be waterproof.

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