擦除速度 meaning in Chinese

erasing speed

However , because of the low speed of program operation and the invalid blocks of flash memory , if we want to make it the storage medium of solid state recorder on the spacecraft , several problems need to be resolved : 1 ) how to improve the speed of program and erase operation of flash memory ; 2 ) how to map out and bypass the invalid blocks and effectively manage the mass memory space
但是由于flash的写入(编程)速度慢、存在无效块等问题，使要将其应用于星载大容量存储器，亟待解决以下几个问题： ( 1 )如何有效地提高闪存的编程和擦除速度； ( 2 )如何标识和旁路初始和使用过程中出现的无效块，并有效地管理大容量数据存储器。