The controlling measures are mainly to economize on water, build sediment prevention facilities at headworks for reducing the amount of sediment diversion;
这些措施主要有：节约用水，在渠首建防沙设施，以减少引沙量；
The controlling measures are mainly to economize on water, build sediment prevention facilities at headworks for reducing the amount of sediment diversion;
这些措施主要有：节约用水，在渠首建防沙设施，以减少引沙量；
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