ผลการค้นหา

ค้นเจอ 78 รายการ

hemisphere

ซีกโลกด้านหนึ่ง, ครึ่งโลก nortern hemisphere ซีกโลกเหนือ นับจากเส้นศูนย์สูตรของโลกขึ้นมา southern hemisphere ซีกโลกใต้ นับจากเส้นศูนย์สูตรของโลกลงมา

Chemical fixation (or stabilization/solidification)

(Environmental Engineering) A term for several different methods of chemically immobilizing hazardous materials into a cement, plastic, or other matrix.

Chemical oxygen demand (COD)

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

Photochemical pollutants

(Environmental Engineering) Chemicals which react photochemically (in the presence of sunlight) to destroy ozone in the stratosphere.

Chemotroph

(Environmental Engineering) Organisms which obtain energy from the metabolism of chemicals, either organic or inorganic.

Chemoautotrophic

(Environmental Engineering) Organisms which utilize inorganic carbon (carbon dioxide or carbonates) for synthesis and inorganic chemicals for energy. See autotrophic and photoautotrophic.

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.

Cellular Concrete

(Concrete Engineering) A lightweight product consisting of portland cement, cement-pozzolan, cement sand, lime-pozzolan, or lime-sand pastes, or pastes containing blends of these ingredients and having a homogenous void or cell structure, attained with gas forming chemicals or foaming agents. For cellular concretes, containing binder ingredients other than or in addition to portland cement, autoclave curing is usually employed.

chemical change

(เคมีแค็ล เชนจ์) การเปลี่ยนแปลงทางเคมี

Biogeochemical cycle

(Environmental Engineering) The cycle of elements through the biotic and abiotic environment.

Ball Burnishing

(english) A method of obtaining a high luster on small parts by rotating them in a wooden-lined barrel with water, burnishing soap, and stainless steel shot.

photo-chemistry

วิชาเคมีที่เกี่ยวกับความเปลี่ยนแปลงของวัตถุเนื่องจากแสง

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