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ค้นเจอ 334 รายการ

Inertia:

(english) The tendency of an object at rest to remain at rest, and of an object in motion to remain in motion.

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.

Surface water

(Environmental Engineering) Water which is contained in lakes, rivers, and oceans.

Deformation:

(english) A change in the shape of an object or material.

Chair(s)

(Concrete Engineering) In concrete formwork, the support for the reinforcing steel.

Automated estimation tools

(Software Engineering) tools that help in estimating project cost or effort

Nitrification

(Environmental Engineering) The biological oxidation of ammonia and ammonium sequentially to nitrite and then nitrate. It occurs naturally in surface waters, and can be engineered in wastewater treatment systems. The purpose of nitrification in wastewater treatment systems is a reduction in the oxygen demand resulting from the ammonia.

Bent Axis Pumps

(english) In this pump, the pistons are at an angle to the drive shaft and Thrust Plate. The piston block shaft is connected to the drive shaft by a universal joint, not shown. The drive shaft, thrust plate, piston block shaft, and piston block all revolve. The connecting rods are attached to the thrust plate and revolve with it, unlike the swash plate pump where the piston rods slide past a stationary swash plate. The outlet ports are semi-circular holes in the Valve Plate, shown on the far right of the animation on edge and in a head-on view below, right. As the pump revolves, half the pistons suck in fluid as they pass over the intake port. The other pistons discharge their fluid through the outlet port. This pump should be compared to the radial piston pump, swash plate pump, and wobble pump.

ASR - Alkali-Silica Reactivity

(Concrete Engineering) The reaction of aggregates, which contain some form of silica or carbonates with sodium oxides or potassium oxides in cement, particularly in warm, moist climates or environments, causing expansion, cracking or popouts in concrete.

Bed-In

(english) Method whereby drag may be rammed in the pit or flask without necessity of rolling over. Process used in production of heavy castings.

Vector:

(english) A mathematical entity having a magnitude and a direction in space.

Mixed liquor volatile suspended solids (MLVSS)

(Environmental Engineering) The volatile suspended solids concentration in the activated sludge tank.

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