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ค้นเจอ 181 รายการ

segmental rock

(กลศาสตร์) เฟืองล้อขนาดเรียวของวงกลมใช้สำหรับเป็นตัวเฟืองจักรกรอก

Facultative

(Environmental Engineering) A group of microorganisms which prefer or preferentially use molecular oxygen when available, but are capable of suing other pathways for energy and synthesis if molecular oxygen is not available.

Total suspended solids

(Environmental Engineering) (TSS) is the amount of suspended (filterable) matter in a water.

Virus

(Environmental Engineering) A submicroscopic genetic constituent which can alternate between two distinct phases. As a virus particle, or virion, it is DNA or RNA enveloped in an organic capsule. As an intracellular virus, it is viral DNA or RNA inserted into the host organisms DNA or RNA.

Anabolism

(Environmental Engineering) Biosynthesis, the production of new cellular materials from other organic or inorganic chemicals.

Substrate level phosphorylation

(Environmental Engineering) The synthesis of the energy storage compound adenosine triphosphate (ATP) from adenosine diphosphate (ADP) using organic substrates without molecular oxygen.

Eucaryotic organisms

(Environmental Engineering) Organisms which possess a nuclear membrane. This includes all known organisms except viruses and bacteria.

Reactive waste

(Environmental Engineering) A waste which; 1) reacts violently with water, 2) forms potentially explosive mixtures with water, 3) is normally unstable, 4) contains cyanide or sulfide in sufficient quantity to evolve toxic fumes at high or low pH, 5) is capable of exploding if heated under pressure, or 6) is an explosive compound listed in Department of Transportation (DoT) regulations. One of EPA's four hazardous waste properties.

Extreme programming

(Software Engineering) an agile process model that emphasizes scenario-based planning, incremental delivery, refactoring, pair programming and continuous testing.

Secured landfill

(Environmental Engineering) A landfill which has containment measures such as liners and a leachate collection system so that materials placed in the landfill will not migrate into the surrounding soil, air and water.

Landfill

(Environmental Engineering) A legal and controlled area for the placement of wastes into the ground.

Corrosive waste

(Environmental Engineering) A waste that is outside the pH range of 2 to 12.5 or a waste that corrodes steel at a rate greater than 6.35 mm (0.25 in) per year. One of EPA's four hazardous waste properties.

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