ค้นเจอ 42 รายการ

Chlorofluorocarbons

แปลว่า(Environmental Engineering) Synthetic organic compounds used for refrigerants, aerosol propellants (prohibited in the U.S.), and blowing agents in plastic foams. CFCs migrate to the upper atmosphere destroying ozone and increasing global warming. Typical atmospheric residence times are 50 to 200 years.

Energy:

แปลว่า(english) A property of a body related to its ability to move a force through a distance opposite the force's direction; energy is the product of the magnitude of the force times the distance. Energy may take several forms: see kinetic energy, potential energy, and elastic energy.

Inertial Force:

แปลว่า(english) A fictitious force used for convenience in visualizing the effects of forces on bodies in motion. For an accelerating body, the inertial force is considered as a body force whose resultant acts at the object's center of gravity in a direction opposite the acceleration. The magnitude of the force is the mass of the object times the magnitude of the acceleration.

Absolute Volume

แปลว่า(Concrete Engineering) The volume of an ingredient in its solid state, without voids between individual pieces or particles, in the case of fluids, the cubic content occupied. In concrete, the actual volume occupied by the different ingredients determined by dividing the weight of each ingredient pounds, by ifs specific gravity, times the weight of one cubic foot of water in pounds. Example: Absolute Volume of one sack of cement equals: 94 ๗ (3.15X62.4) = 0.478 cubic feet

Another year filled with sweet memories and joyous times has passed. You have made my year very special, and I wish for you to continue to do so. With you around, every moment is a special occasion for me. I hope you have a great year ahead. May God bless my love with his care and warmth. I love you, and wish you a very Happy New Year

แปลว่าผ่านไปกับอีกหนึ่งปีที่มีแต่ความทรงจำดี ๆ และความสุข เธอทำให้มันเป็นปีที่แสนพิเศษ และฉันหวังว่าเธอจะทำให้มันเป็นเช่นนี้เรื่อยไป เพียงมีเธอใกล้ ๆ ทุกช่วงเวลาก็พิเศษสำหรับฉันเสมอ ขอให้เธอมีปีที่ดี พระเจ้าร่วมได้อวยพรให้เธอด้วยความอบอุ่นและห่วงใย รักเธอนะ สุขสันต์วันปีใหม่

หมวดคำอวยพรวันคริสต์มาส

AAC - Autoclaved Aerated Concrete

แปลว่า(Concrete Engineering) Exceptionally lightweight precast concrete with high thermal qualities and fire resistence. Suitable for cutting with ordinary hand tools. Mix design is composed of portland cement, sand or siliceous material, lime, gypsum, finely powdered aluminum, and water. Initial mix is a combination of portland cement, sand, lime and gypsum to produce a slurry. Finely powdered aluminum mixed into a paste is added prior to placement into large, rail-like forms. The finely powdered aluminum reacts with the alkaline components of the cement and lime to produce hydrogen gas, which increases the volume approximately five times producing a uniformly, dispersed cellular structure. Units are cut to required shape. Units are placed in an autoclave, an enclosed pressurized chamber, and steam cured at 3500 F. Approximately 80% of the ultimate volume consists of air voids.