标准的视力表箱适用于一般体检，招生、招工等视力测定，临床方面也可参照使用。
The standard logarithm visual acuity chart is applicable to general physical examination, enrollment and recruitment and it can also be referred to in clinical research.
该铅封应用于电力表箱、仪器仪表、石油化工等单位，采用高强度的尼龙或聚乙烯制成。
Table accessories for the electricity boxes, instrumentation, and the petrochemical units, using high-intensity nylon or polyethylene manufactured.
从根本上说，这就是让您的样式表可移植的工具箱，就是说为其提供应对未知特性的办法。
In essence, this is a toolkit for you to make your stylesheets portable, by giving them ways to cope with unknown features.
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