The refitted resonant column apparatus in the Institute of Engineering Mechanics is employed for the experimental investigation and its accuracy and reliability have been verified by the tests.
使用的共振柱仪是由工程力学研究所原有共振柱改装而成，并经试验验证了改装后仪器的精度和可靠性。
2
Electrical mechanics may specialize in working with certain types of apparatus, such as electric motors or transformers, or in performing certain functions, such as winding coils.
电气技师可能专注于某种特定类型的装置，如电动马达或变压器，或执行某些功能，例如绕组线圈。
3
Electrical mechanics maintain, test, rebuild and repair electric motors, transformers, switchgear and other electrical apparatus.