Any new prevention modality must not undermine existing protective behaviours and prevention strategies that reduce the risk of HIV transmission.

任何新的预防方法必须不损害减少HIV传播风险的现有保护行为和预防战略。

youdao

While 100% protection is not possible, protective measures can significantly reduce the risk of transmission.

万无一失的保护是不可能的。然而，保护措施却可以有效地降低感染的机率。

youdao

They must take the appropriate protective measures in order to avoid over-voltage and over-current generated by the transmission lines of communications equipment and personnel hazards.

因此必须采取适当的保护措施以避免因过电压及其所产生的过电流对传输线路、通信设备和人员造成的危害。

youdao