Besides the lower cost of silicon, the process could also use larger and more economical six-inch (15cm) wafers and be carried out with more common fabrication equipment.
除了硅的低成本外，这一工艺将能使用更大和更经济的6吋(15厘米)晶片并且还可以使用更普通的制造设备。
With conventional techniques, oil prices have to be above $50 to $60 per barrel—as they have been for several years—for oil sands to be economical.
如果使用传统的技术开采油砂资源而且要划算的话，其油价将会是在每桶50美元到60美元以上，其实过去这些年都是这个价。
The alarm bells of the health status of Chinese people start ringing. It cannot be simply boiled down to the "health overdraft"; however, it is a phenomenon with complex social and economical reasons.
中国人的健康状况亮起红灯，并不能简单地归结为“健康透支”的结果，而是有着复杂的社会和经济原因。
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