有可能通过其它吸血昆虫发生机械性传播。
Mechanical transmission through other blood sucking insects is possible.
这是一种机械式的传播，包含信号旗、21响礼炮、号角、汽笛。
This is the mechanical type of communication, which includes the use of signal flags, the 21-gun salute, horns, and sirens.
它可以通过节肢动物机械地传播。
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