Sometimes VT can last for 30 seconds or less (unsustained), and it might not cause any symptoms, although it causes inefficient heartbeats.
有时室速的持续时间不会超过半分钟（非持续性室速），也不会有任何症状，虽说这期间心脏会有一些无效的跳动。
All evidence to date suggests that isolated instances of limited, unsustained human-to-human transmission can be expected from avian influenza viruses in humans.
迄今为止，所有证据表明，可预期人间禽流感病毒有限、非持续人际传播的孤立事例。
The Pruning technology was used to make the network architecture unsustained growth, and avoid the fitting and the training phenomenon, thus, it has guaranteed system's pan-ability.
使用了修剪技术，使得网络结构不会持续增长，避免了过拟合及过训练现象，因而确保了系统的泛化能力。
The Pruning technology was used to make the network architecture unsustained growth, and avoid the fitting and the training phenomenon, thus, it has guaranteed system's pan-ability.
使用了修剪技术，使得网络结构不会持续增长，避免了过拟合及过训练现象，因而确保了系统的泛化能力。
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