In order to diagnose the working conditions of progressive cavity pumps a system for testing polished rod toad is established by which real-time test is conducted on vertical laod and torque on a polished rod .

为了诊断螺杆泵采油系统工况，建立了光 杆受力测试系统，可以实时 测试光杆所承受的垂向载荷、扭矩。

Developers can use Toad to build test and debug PL / SQL packages procedures triggers and functions .

开发者可以使用 Toad来构建、 测试以及调试PL/SQL包、过程、触发器和函数；