请问划线处两个have在句中分别的成分和相关语法知识，两者一样吗？谢谢！

The trajectory we're on is that the number of encounters we have with people about whom we have limited knowledge is multiplying.

先看一下句子成分主语是the trajectory，系动词is，that及以后是表语从句。

 we're on是定语从句，修饰trajectory，这个定语从句省略了关系代词（在定语从句中作介词on的宾语）

 表语从句that the number of encounters we have with people about whom we have limited knowledge is multiplying中，that是连接词，主语是the number of encounters（遇到的人数）， is multiplying是表语从句的谓语，现在进行时，表示正在增加。

表语从句中we have是定语从句修饰encounters，这个定语从句省略了关系代词（在定语从句中作介词on的宾语），介词短语with people about whom we have limited knowledg做定语修饰encounters。

介词短语with people about whom we have limited knowledg中介词短语people about whom we have limited knowledg做介词with的宾语，about whom we have limited knowledg是定语从句，修饰people。

试着翻译一下：The trajectory  is that the number of encounters is multiplying轨迹是偶遇的数字正在增加。

The trajectory we're on is that the number of encounters is multiplying.我们所在的轨迹是偶遇的数字正在增加。

The trajectory we're on is that the number of encounters we have is multiplying.我们所在的轨迹是我们所发生的偶遇的数字正在增加。

The trajectory we're on is that the number of encounters we have with people is multiplying.我们所在的轨迹是我们所发生的与人们的偶遇的数字正在增加。

The trajectory we're on is that the number of encounters we have with people about whom we have limited knowledge is multiplying.我们所在的轨迹是我们所发生的与我们知之甚少的人们的偶遇的数字正在增加。

这句中的两个have都是实义动词。have 作实义动词，意思是

有，具有; 拿，取得; 从事; 必须，不得不

句中的两个have意思可以都看为 有，是一样的。