economise

Based on practical data obtained on site and experiences in oil transportation, the article deals with various factors that affect the heat loss of crude oil pipelines, and furthermore, introduces some technical measures by which to minimize hest loss and economise energy.

文章结合现场实测数据和输油经验，论述了影响原油管道热损失的诸因素，进而提出了减少热损失、节约能源的技术措施。

Production in Australia, Japan and Malaysia was expanded; other sources of rare earths were exploited; manufacturers rapidly found ways to economise or substitute, as it were, a less rare rare earth for a rarer one.

澳大利亚、日本和马来西亚扩大了稀土生产能力；其他一些稀土来源得到了利用；生产商很快找到了节约或替代稀土的办法，也就是以不那么稀有的稀土代替更为稀有的稀土。

The ships that come into and out of Walvis Bay are generally in less of a hurry than they were before the downturn, steaming more slowly to economise on expensive fuel.

比起危机前，如今进出沃尔维斯湾的船只普遍显得不急不忙：它们为节约昂贵的油费而降低了航速。