Exactfile ( currently in beta ) is a file integrity verification tool .

exactfile（目前处于beta阶段）是一个文件完整性验证工具。

Verification of the no-kidnap pledge will be difficult .

要想核实放弃绑架的承诺确实有些困难。

Had alibaba done nothing , this verification system would quickly have become worthless .

如果阿里巴巴不采取措施，这套认证系统很快就会变得一文不值。

Since launch , engineers have beenconducting testing and verification of the spacecraft 's components .

自发射以来，工程人员已经对太空船的各个组件进行了检测和确认。

Experimental verification of this prediction is unlikely to appear any time soon , if at all .

这个推测的实验证实即使能做成，短期内也不可能出现。