Because the validity is 180 days, you will get the response that the signer certificate will expire after six months, as shown by the last line echoed in figures 6 and 7.
因为有效期为180天，所以您将收到6个月后签名证书将过期的警告。如图6和图7中的最后一行所示。
2
Hill stressed that a key part of their response had to be making sure that the public was informed of scientific doubts about the validity of the research.
希尔向他们强调，关键行动是确保让人们知道该研究的真实性在科学上还存在可疑之处。
3
The experimental result shows BLDCM response rapidly and run stableness in networked control system and proves the validity and feasibility of this control system.