| 释义 |
- abbr.流化床燃烧（Fluidized-Bed Combustion）；全缓冲通道（Fully - Buffered Channel）
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In the A, B, C, D and F grading system, the first four letters are typically considered passing grades. 在 A、B、C、D 和 F 评分体系中，前四个字母通常被认为是及格。 - 2
Figure 3: Performance TAB shows you a letter grade (a, b, c, d, f) and a percent grade (1-100). 图3：性能标签使用字母(A, B, C, D, F)表示等级以及当前等级(1 - 100)。 - 3
CrashMetrics ticks all the important boxes: a accuracy, b correct level of mathematics, c understandability, d robustness, e flexibility, f ease of use. CrashMetrics符合下列一切要求：a准确，b正确的量化程度，c易理解，d稳定，e灵活，f易用。
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