Cropland classification is a category of land evaluation, its task is to figure out the quality, quantity and spatial distribution of cropland in some regions.
耕地等别划分属于土地评价的范畴，其任务就是要搞清一定区域内耕地质量、数量及其空间分布状况。
The evaluation of source rock concerns about quantity and quality of organic materials, degree of maturation, computation of quantity of generated oil, and source-oil correlation.
生油岩评价包括有机质的数量和质量、成熟度和生油量计算方法；源油对比包括对比指标及应用。
Strengthen arrangement and equip good quality and appropriate quantity machines, build up a system of student 's physical general evaluation and information feedback.
加强管理，配置质量好、数量适宜的仪器设备，构建大学生体质综合评价与信息反馈系统。
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