因此，无磁杜瓦在使用过程中反复冷却及复温所产生的循环应力载荷，是导致其真空性能下降的一个重要原因。

Therefore, the cyclic stress caused by repeatedly cooling and heating during the usage of non-magnetic Dewar is one of the important reasons that causes the decrease of vacuum performance.

youdao

因此，无磁杜瓦在使用过程中反复冷却及复温所产生的循环应力载荷，是导致其真空性能下降的一个重要原因。

Therefore, the cyclic stress caused by repeatedly cooling and heating during the usage of non-magnetic Dewar is one of the important reasons that causes the decrease of vacuum performance.

youdao