The new improved technology includes high pressure turbine airfoil advancements that enhance operational reliability, lower maintenance costs and improve fuel burn retention.

新技术的改进包括高压涡轮机翼，可提高其作战的可靠性、降低维修成本并提高燃油燃烧使用率。

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Maintenance should first check the tire pressure, wear, nut loose or fall off, remove the twins or tread on the inserts and nails and other sharp objects.

养护时首先应查看轮胎气压、磨损状况，螺母有无松动或掉落，除去双胎间或胎面上的嵌入物及铁钉等尖利杂物。

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“On my salary, the maintenance costs are a pressure, ” he said. “But it gives me great pleasure and the feeling of a higher standard of living.”

“以我的工资，汽车保养费用是不小的压力，”他说，“但开车给了我巨大的享受，也有种高级生活的感觉。”

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"HSE's investigation has concluded that National Grid Gas have correctly applied their gas mains maintenance procedures in relation to the low pressure main located at 1-5 Bridge Street, " the report said.

BBC: Shrewsbury gas explosion 'no-one's fault' HSE concludes

While the Maintenance of Parents Act, and the general social pressure to take care of the elderly within the family, has so far ensured most Singaporean senior citizens, there are signs of change in the social fabric.

BBC: Under One Roof?