The heart pumps by expending and contracting of muscle.心脏通过收缩肌肉抽取和放出(血液).Money held by households and firms is contracting - a harbinger of disinflation and slump.家庭和商户所持有的现金在缩水,这预示着通货紧缩和经济萧条.Most bats produce echolocati...
频率多边形比直方图更简单.The frequency polygon is simpler than its histogram counterpart.应力范围直方图可用作估算等效 均方根 应用力范围.The stress range histogram was used to estimate the effective root - mean - square stress range.提出了基于二维 直方图 的最大相关准则自动阈...