It helps that natural history looks good in high-definition and in three dimensions.
这有助于博物学在高清晰度和三方面看起来不错。
Good high schools can cost $3,000 for three years, and a high-school-age laborer can earn $150 a month; that’s a cost differential of about $8,400—a fortune for poor peasant families.
在好的高中上3年学,可花去3000美元,而高中适龄劳动者可以赚取每月150元,这是一个约8,400元的成本差异,这对贫苦农民家庭是一笔不小的数目。
Among the three-phase power-factor correction circuits, the full decoupling circuit is especially suitable for high power fields because of its high input power and good electrical performance.
在三相功率因数校正电路中,全解耦型电路由于其输入功率大,电气性能较好等优势特别适用于大功率场合。
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