石家庄市地下水盐污染研究具有典型示范性。
Shijiazhuang is a representative city for the study of groundwater salt pollution.
系统设计的同时选择典型示范区进行了实践。
Meanwhile the selection of the representative demonstration area has been put into practice.
又以安吉县为典型示范区，研究了不同经营年限的毛竹林肥力变化。
Also take Anji County as the typical model district, has studied the soil fertility dynamic change in bamboo stand with different management years.
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