economic precision class 经济精度等级
class of precision [机] 精度等级
class of-precision 精度等级
class b precision b级精度
As Posner emphasizes, it is very difficult to estimate with any precision what is the actual probability of highly infrequent events, and such a leak would fall within this class.
正如波斯纳强调的，要精确估计高度偶发事件的实际发生概率是非常困难的，这次的漏油事件就是属于这类事件。
SDB I is a 250-pound class, low-cost and low-collateral-damage precision strike weapon.
SDB I是一个重达250磅、低成本、低附带损害的精确打击武器。
BigDecimal is a standard class, with no special support in the compiler, to represent arbitrary-precision decimal Numbers and perform arithmetic on them.
BigDecimal是标准的类，在编译器中不需要特殊支持，它可以表示任意精度的小数，并对它们进行计算。
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