covering thread meaning in English

包覆线

Service of all internal check valve components shall be through top mounted access covers threaded to the main valve body
所有止回阀内部部件的维修应该能够通过顶部安装的检修盖进入进行，这种检修盖应该通过螺纹固定在主阀门阀体上。
The product improves the starting quality of motorcycle and has a wide application prospect the rotor of electromotor is circled with lacquer - covered thread whose diameter is larger than 0 . 6mm , and whose rigidity is high
该电机转子采用了线径大于0 . 6毫米的漆包线，其线径较粗且硬度较高，传统绕线机构无法对其进行正常绕制。
Of this series covered threads and synchronization mechanisms like semaphores and mutexes . this second installment looks closely at memory management , various ipc mechanisms including shared memory and pipes , and file management
介绍了线程以及一些同步机制，例如信号量和互斥锁；这第2期文章着重介绍内存管理、文件管理和几种ipc机制，包括共享内存和管道。