mumber造句怎么写

It has the advantage that the tension of the mesh can be readjusted at any time during the printing process, or to correct the image shifting due to slakening in mesh tension after a mumber of prints, it is widely used in the printing of double-sided and multi-layers PCBs.

The mumber of stomata on the abaxial epidermis of compact-type is 17.0% higher than that of flat-type,and on the adaxial epidermis is 11.5% higher.