反常凝结;
Effects of abnormal weather in early summer on citrus fruit setting
初夏异常气候对柑桔座果的影响
On the bases of analyzing the theory of GPS height survey, the author put forward a method to survey height accurately with GPS in mountain area by setting up a basic height surface and adding a correction of abnormal gravitation in mountain area.
在分析GPS测高理论的基础上,提出了用建立基础高程面和加入山区重力异常改正的方法,实现山地区域GPS精确测高,并用实例进行了检核,达到了四等水准测高精度要求。
Abnormal setting of concrete and improper control of curing condition is two important factors affecting the quality of concrete.
混凝土不正常凝结和养护条件控制不力是影响混凝土工程质量的两个重要方面。
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