他从1990年到1994年在西太区作为根除脊髓灰质炎行动领导人，使该区域报告的脊灰病例从5,963例减少到700例。
As head of polio eradication initiatives in the Western Pacific from 1990 to 1994, he oversaw a reduction in reported polio cases from 5963 to 700 in the Region.
虽然其巨大的火山灰柱并非空前绝后，但其位置尤其引人注目，因为它漂浮到了许多人口稠密区。
Although the large ash plume was not unparalleled in its abundance, its location was particularly noticeable because it drifted across such well populated areas.
新加坡双溪布洛湿地保护区中，一只灰缝夜莺站在树枝上。
An ashy tailorbird on a tree branch at the Sungei Buloh wetland reserve, a wildlife sanctuary in Singapore.
碲增加冷硬铸铁白口层厚度和硬度，缩小麻口区，但降低灰口部分的机械性能。
Te also raises the thickness and hardness of the chilled layer of white cast iron, reduces the area with mottle and lowers mechanical properties of the part of gray cast iron.
一些灰烬散落在了无人居住区，但是大部分火山灰都被西风带到了欧洲北部，其中就包括离此1，200英里的英国。
Some ash was falling on uninhabited areas, but most was being blown by westerly winds toward northern Europe, including Britain, about 1,200 miles away.
灰岩出露区的油气勘探属于世界级难题，是一个复杂的系统工程。
Limestone outcrop area of oil and gas exploration in the world-class problems, is a complex and systematic project.
高炉瓦斯灰是炼铁高炉在炼铁过程中随高炉煤气（亦称瓦斯）带出的原燃料的粉尘以及高温区激烈反应而产生的微粒，是钢铁企业主要固体排放物之一。
The blast furnace dust is a kind of solid waste that produced in the process of iron smelting. It is one of the main solid wastes of the steel plant.
在靠近公园走道的两个饮茶区，设计师分别设置了室外灰空间和室内灰空间。
In the two tea areas near the park walkway, designers set up outdoor gray space and indoor gray space respectively.
在靠近公园走道的两个饮茶区，设计师分别设置了室外灰空间和室内灰空间。
In the two tea areas near the park walkway, designers set up outdoor gray space and indoor gray space respectively.
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