In the deep-request sequence (assuming a database connection is needed), these aspects of database connection pooling can be affected by allowing more threads.
在深请求序列中(假设需要数据库连接)，数据库连接池的这些方面可能会由于允许多个线程而受到影响。
In a concurrent model of execution, an application is divided into two or more processes or threads, each executing in its own sequence of statements or instructions.
在并发执行模型中，应用可被划分为多个进程或线程，每个进程和线程都有专属的、单独运行的语句或指令序列。
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