医生详细讲解了心脏起搏器植入的步骤和风险。

The doctor explained the procedures and risks of pacemaker ___implantations in detail.

广告的目的是将品牌意识植入消费者心中。

The goal of advertising is the ___implantation of brand awareness in consumers' minds.

胚胎植入通常在受精后5到7天发生。

___Implantation of the embryo usually occurs 5 to 7 days after fertilization.