@LazarusLong13 @tarahaelle Likewise, what is the process that downgrades respirator guidance in order to manage supply chains, but does not reverse that downgrade when supplies are ample?
@LazarusLong13@tarahaelle同样，为了管理供应链，降低呼吸机指导的过程是什么，但在供应充足时不会逆转这种降低？