The standards will be published free of charge for public use later this year after the NCOIC gives final approval.
在NCOIC得到最后的批准后，该标准于今年晚些时候将公布，并供市民免费使用。
2
For free applications, only about 20 percent of users return to use the app the first day after they download it, and then it quickly drops off from there.