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- Our community is a leader in the conservation of wildlife. 我们社区在野生动物保护方面走在前头。
- Indonesia is abundant in petroleum deposits. 印尼的石油蕴藏量丰富。
- Who discovered the conservation of energy? 谁发现了能量守恒？
- A chemical derived from petroleum or natural gas. 石油化学制品从石油或天然气中提炼出的化学产品
- A trademark used for a brand of petroleum jelly. 凡士林用来作为石油脂的商标
- Conservation is of the utmost importance. 保护自然资源至关重要。
- Taiwan seems to contain no petroleum. 台湾恐怕没有蕴藏石油吧！
- This land is rich with petroleum. 这片土地盛产石油。
- The chemistry of petroleum and its derivatives. 石油化学石油及其复合物的化学
- Conservation methods will also help meet their energy needs. 能量保存方法也会有利于满足其能源需求。
- Petroleum can be used to produce various chemical products. 石油可用于生产多种化学产品。
- An organic derivative, such as coal or petroleum. 有机衍生物一种有机衍生物，如煤或石油
- A concrete wall is built to stop silt from leaking to the conservation land. 一道水泥墙修筑起来，用以防止泥沙流进保留地。
- petroleum conservation 石油资源节约
- Crude oil can be refined into various petroleum products. 原油可炼制成各种石油产品。
- Most people have come to accept the need for conservation of natural resources. 现在大多数人已认识到保护自然资源的必要。
- He leans politically towards conservation. 他在政治上倾向于保守主义。
- You must master the law of conservation of energy. 你必须掌握能量守衡定律。
- The petroleum price will be unfrozen next month. 对石油价格的限制将于下月取消。
- There is a need for the conservation of trees. 有必要保护树木。
