The monitoring of soil moisture dynamics is a key technique for agricultural and forestrial production of sandy area.
沙地水分定位动态监测是沙区农业、林业生产中的一项重要措施。
Methods: a questionnaire was conducted to survey the 36 key contact cities (area) all community health service centers and stations through filling in the routine monitoring tables.
方法：采用问卷调查(普查)的方式，由36个重点联系城市(区)所有社区卫生服务中心和站填写常规监测表。
The key to this new technique lies in determining correctly waterflooded area and monitoring the location and movement situation of waterflood front in reservoir.
该技术的关键是正确地确定油层中注水区分布范围及其前线位置和运动状态。
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