“step utilization”的概念、定义、翻译、参考文献-科学参考

单词	step utilization
释义	step utilization Encyclopedia 理学矿产保护与利用释 step utilization梯级利用根据矿产资源禀赋特征、外围环境、技术条件等要素差异，对资源进行的时序化开发、差别化利用。
随便看	William Ⅰ Willi Boskovsky Willie Esterhuyse Willie Howard Mays willingness to accept willingness to pay Willman Ⅰ dwarf galaxy Willmore Willmore conjecture Willmore functional will of sports Willow Willow and Swallow Scroll by Shen Shou willow family willowleaf mosquitotrap willowleaf rhizome willow-leaf-shaped vase willow scrub willow spittlebug Willow，crow，reed，Wild goose by Zhao Ji Will power Willstrop telescope will to live will to power will training

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