And the equation of bivariate linear regression between frost heaving ratio and content, compactness is established.建立了冻胀率与含水量和压实度的二元线性回归方程.However, the frost - heaving of soil can have adverse effect to the adjacent pil...
红血球将氧气运送到全身.Red cells ferry oxygen throughout the body.血液的密度随着红血球的浓度而增加, 因而过低的血液密度可说明患者贫血.Since density increases with the concentration of red cells, an unusually low density may indicate anemia.每一天的每一秒钟, 你的身体会制造出一千万个新的...