1. Brittleness remains a problem when building steel structures in cold conditions, such as oil rigs in the Arctic. 对于在寒冷条件下建造钢结构,比如北极的石油钻井平台,如何解决材料的脆性仍然是一个问题。
2. But the gas RIGS now keep going through the winter. 但现在天然气钻探使得就业机会在冬季依然存在。
3. The company’s rigs are practically invisible from below. 实际上从以下地区无法看到公司的钻探平台。
4. It reduces the number of times oil RIGS need to be moved. 减少了石油井架的搬运次数。
5. DRILL RIGS tower over the silos on farms in Pennsylvania. 宾夕法尼亚的农场,一座座钻塔高耸,俯视着贮粮的圆仓。