BARBARA WAAS used to be a book-keeper for a small brokerage firm.
BARBARA WAAS过去曾是一家小型经纪公司的薄记员。
2
The flowchart and characteristic of the grid-based algorithm fur Ionospheric delay correction in WAAS are discussed.
阐述了广域增强系统电离层延迟网格修正算法流程、思路及特点，希望能给相关研究者提供参考。
3
It analyses the quantity of ionosphere Pierce point in grid above the reference stations, and simply discusses the question of reference stations position and quantity in China WAAS.