如何施救药物中毒 - 图文 

. . . .

ylabel('x,y/mg')

图2代码：

t=[0:0.01:25]; x=1100.*exp(-0.1386.*t);

y=6600.*(exp(-0.1155.*t)-exp(-0.1386.*t)); z=1650.*exp(-0.1386.*t)-1609.5.*exp(-0.2310.*t); plot(t,x,'-b',t,y,'-b',t,z,'-b'); grid on; text(4,650,'x(t)'); text(10,410,'y(t)'); text(7,250,'z(t)'); xlabel('t/h'); ylabel('x,y,z/mg')

图3代码：

t=[0:0.01:25]; x=1100.*exp(-0.1386.*t);

y=6600.*(exp(-0.1155.*t)-exp(-0.1386.*t)); z=275.*exp(-0.1386.*t)+112.3.*exp(-0.6930.*t); plot(t,x,'-b',t,y,'-b',t,z,'-b'); grid on; text(4,650,'x(t)'); text(10,410,'y(t)'); text(7,150,'z(t)'); xlabel('t/h'); ylabel('x,y,z/mg')

. . . .