Most Chiness crude oils are high in nickel and low in vanadium content.
中国大多数原油中金属含量都是镍高钒低。
The strength of steel increases with the increasing of vanadium content.
钒含量增加，强度显著增加。
Therefore, the vanadium content in high chromium cast iron used for metallurgical spare parts is seriously controlled.
因此，必须严格控制用于冶金备件上的高铬铸铁中的钒含量。
The testing results and their microstructure show that the one with a higher vanadium content and smaller crystal grain has a high strength.
由三种不同成分的拉伸试验结果与金相组织可知：一组成分的含钒量增加，晶粒细化，从而强度增大。
Because crude oil from Xinjiang has high vanadium content, its atmospheric residuum and vacuum residuum shouldn't be directly used as catalytic raw material.
同时新疆原油钒含量高，其常压渣油和减压渣油均不宜直接作催化原料。
The causes behind breakage of the catalyst are excessive sodium and vanadium content in the feed oil, excessively high regeneration temperature and excessively high steam velocity in riser pipe.
对催化剂的分析表明，催化剂破碎主要由于原料中钠、钒含量超标、再生温度过高和提升管预提蒸汽线速过高所致。
Methods Vanadium content in cassia seed was measured by graphite furnace atomic absorption spectrophotometer.
方法应用石墨炉原子吸收分光光度法测定富钒决明子芽中钒含量。
Methods Vanadium content in cassia seed was measured by graphite furnace atomic absorption spectrophotometer.
方法应用石墨炉原子吸收分光光度法测定富钒决明子芽中钒含量。
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