本系统不涉及活动部件；机泵设备运行第三年故障率下降80%。
This system does not involve moving parts, pump failure down 80% in the third year of equipment operation.
美国和它的支持者辩称，他们的提案只允许使用1980年后生产的故障率低于1%的集束炸弹。
The us and its supporters argued that their proposal would allow the use of cluster bombs manufactured after 1980 and that these had a less than 1% failure rate.
在植入后，随着时间的推移，每年导线故障率持续增长，在第10年时达到20%。
The annual failure rate increased with progressive time after implantation and reached 20% in 10-year-old leads.
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