组织专人到全国各专业市场、展览会发送邀请函。
Send special persons to professional markets across China to post the exhibition invitation.
邀请函通过手写发送邀请函给客人，显示的场合的重要性和个人意义。
Send invitation letter to the guest invitation by hand, shows that the importance of the occasion and personal meaning.
首先要确定目标观众是谁以及接下来要达到的结果，在展示前向这些目标受众发送邀请函。
It has to be decided first who is the target audience and then according to the result, send out the invitation letters to the right people before the demonstration.
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