1. An examination is carried out before the insertion of the tube. 插入导管前先要进行检查。
2. If you add a word, put an insertion mark in the right place and write the missing word in the blank. 如果你要添加一个单词，在正确的位置做一个插入标记，然后把缺失的单词写在空白处。
3. The power supply connector can realize safe electriferous insertion in the power transmission of a power interface. 在电源接口的功率传输中，电源接头可以实现安全带电插接。
4. Verbatim insertion is more appropriate in this example, since the aim is to exactly copy the text above the cursor. 在本例中更适合使用逐字插入，因为这里的目标是精确地复制游标上方的文本。
5. In fact, the insertion of the client and provider gateways into the flow should be transparent to both the client and provider. 实际上，将客户端和提供者网关插入到流中应该对客户端和提供者都是透明的。
