higher high water
1.As the dam construction technology develops and the great dams higher than 300 meters are built, the problem of energy dissipation with high water head, large discharge and narrows gorge has become more serious. Thus more attentions have been paid on the research of the contraction energy dissipators.
2.Method The mice of test group drink waler with fluorine and the mice of control group drink running water. The significance test was conduced with the t-test . Result The results showed that the SCE frequency of the mice drinking high-fluorine water ware higher than those of control group and the difference was obvious(p <0.05) .
4.Study was conducted to determine the potential and ecological adaptability of the rice mulching plastic film water saving cultivation and high yield cultivation in water lacking district. Results showed that film covered rice required water 42.2% less than the common water cultivation rice,gor 3.7%～24.7% higher yield than the rice under the dry farming.
5.The high turbidity problem in water out of the cyclofloc always exist in Pech-David water treatment plant at Toulouse in France. Compared with the other water treatment plant (Clairfont) at Toulouse, the turbidity of Pech-David was 2.3NTU and was higher than that of Clairfont as 0.5NTU. Coagulation jar-tests with several coagulants and coagulation aids from Floerger and Ciba company were studied to solve this problem.
6.In contrast, the estimated carbon flux of large copepods (>330μm) was high to 108.67mg C m -2 day -1 , making up 95.3% of the total macro zooplankton carbon flux. The fact that apparent carbon flux of macro zooplankton was 2 3 orders magnitude higher than phytoplankton carbon flux, displays an obvious feature of high zooplankton carbon and low phytoplankton carbon in the water column in the ice melting duration in Chukchi Sea.
9.(2) The particles of FBC ashes are irregular and loose textured, which are significantly different from those of PC fly ashes that are spherical and coMPact, so the requirement of water consistence of FBC fly ashes is much higher than that of PC fly ash, and the water absorption of FBC bottom ashes is very high.
10.Rare earth among them improves orange Shan face to face fruit weight, the fruit quality effect are maximal, Gush the Shi rare earth comparing with to spraying water, citrus 24.66 improve 14.44g, fruit strengthens the shape thing improving 1.15 percentage points, fruit and fruit weight ratio valve re-high 0.036; boron is best to raise citrus fruit, Citrus fruit sprayed Borax 1.71 percentage points higher than spraying water.
