ตัวกรองผลการค้นหา
stone age
แปลว่ายุคหิน (สมัยที่มนุษย์ใช้หินเป็นเครื่องมือ)
Present perfect กับการใช้ Already, Ever, Never และ Yet
Age Hardening
แปลว่า(english) Hardening by aging, usually after rapid cooling or cold working. The term as applied to soft, or low carbon steels, relates to a wide variety of commercially important, slow, gradual changes that take place in properties of steels after the final treatment. These changes, which bring about a condition of increased hardness, elastic limit, and tensile strength with a consequent loss in ductility, occur during the period in which the steel is at normal temperatures.
Nitrogenous oxygen demand (NOD)
แปลว่า(Environmental Engineering) The amount of oxygen required to oxidize any ammonia present in a water.
Kerogen
แปลว่า(Environmental Engineering) A fossilized organic material present in oil shale and some other sedimentary rocks.
Carbonaceous biochemical oxygen demand (CBOD)
แปลว่า(Environmental Engineering) The amount of oxygen required to oxidize any carbon containing matter present in a water.
Biochemical oxygen demand (BOD)
แปลว่า(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.
Discrete settling
แปลว่า(Environmental Engineering) Settling in which individual particles settle independently, neither agglomerating or interfering with the settling of the other particles present. This occurs in waters with a low concentration of particles.
Ultimate biochemical oxygen demand (BODu)
แปลว่า(Environmental Engineering) The total amount of oxygen required to oxidize any organic matter present in a water, i.e. after an extended period, such as 20 or 30 days.
Maximum Size Aggregate
แปลว่า(Concrete Engineering) Aggregate whose largest particle size is present in sufficient quantity to affect the physical properties of concrete; generally designated by the sieve size on which the maximum amount permitted to be retained is 5 or 10 percent by weight.
Base Metal
แปลว่า(english) (1) The metal present in the largest proportion in an alloy; (2) the metal to be brazed, cut or welded; (3) after welding the part of the metal that was not melted during the process.
