近些年，泄漏发生后由输油管道运营商回收的危险液体的比例却呈明显下降趋势。
And the percentage of dangerous liquids recovered by pipeline operators after a spill has dropped considerably in recent years.
斯莫利说，大的石油管道运营商诸如埃克森美孚石油公司、英国石油公司、康德·摩根石油公司——没有科赫公司——都接受了基金会的免费服务。
Large pipeline operators such as ExxonMobil Corp., BP Plc and Kinder Morgan Inc. — and not Koch — accept free services from the foundation, Smalley says.
中国石油作为甘肃境内油气管道重要运营商，高度重视管道安全问题，多次与甘肃省携手开展管道保护工作。
Chinese oil and gas pipeline in Gansu Province as an important carrier, attaches great importance to pipeline safety, and Gansu Province to join hands to carry out several pipeline protection.
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