نمایش نتیجه 2231 تا 2240 از 2718 نتیجه یافت شده برای v:
n: A type of salt in which chromium atoms are in the plus-7 valence state, such as potassium dichromate, K2Cr2O7.
بیکرومات سدیم
n: see caustic soda.
n: The common name for sodium hydroxide [NaOH]. Caustic soda is used in most water-base muds to increase and maintain pH and alkalinity. It is a hazardous material to handle because it is very caustic and gives off heat when dissolved in water. Proper traini
سود سوزآور
n: a high-intensity discharge lamp in which the gas is a mixture of sodium and mercury. It starts with the arcing of xenon gas between the main electrodes and gives off a yellow-orange color.
n: A kind of operating program of shut off choke valve,then shut off preventer when overflow appearance.
n: in well-control operations, closing the BOPs with the choke and HCR, or fail-safe, valves open. Compare hard shut-in.
n: A kind of operating program of shut off choke valve,then shut off preventer when overflow appearance.
n: the uneven penetration of pipe-line coatings due to changes in soil volume and moisture along the pipeline bed.
a centralizer with a rigid, solid body with straight or curved veins that hold the pipe off the wall and allow flow. Used in deviated wells and with heavy pipe strings.
n: a special wireline made of brittle but very strong steel, usually 0.066 to 0.092 inches (0.17 to 0.23 centimetres) in diameter (as opposed to stranded wirelines, which may be
n: The maximum velocity of bleeding solids phase flow when separated facilities are not overload.
© ۱۳۹۲-۱۳۹۷ این اثر شامل قانون حمایت از مولفین بوده و هرگونه کپی برداری از آن ممنوع است.
