Meanwhile, up until six months ago, NASA had 15 functional Earth-sensing satellites.
与此同时，直到6个月前，美国航天局有15颗功能地球遥感卫星。
In this paper, the illuminant principle and functional characters of rare earth noctilucent fibers were summarized, and then analyze its wearability and application area.
简述了稀土夜光纤维的发光原理及其功能特性，分析了该纤维的服用性能及应用领域。
Fitting orthogonal polynomial method for characterizing the functional relationship between the dry density and moisture content of earth-fill in standard compaction test is presented.
提出了描述标准击实试验中土料干密度和含水量之间函数关系的拟合正交多项式方法。
Fitting orthogonal polynomial method for characterizing the functional relationship between the dry density and moisture content of earth-fill in standard compaction test is presented.
提出了描述标准击实试验中土料干密度和含水量之间函数关系的拟合正交多项式方法。
应用推荐