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Science mathematics, undergraduate power grid 700-degree discerning person.
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Official website, the recruitment examination network of public institutions, shows that people need a physical examination when applying for the power grid, and eyesight is one of the compulsory items of physical examination, requiring 0.8. If the applicant's eyesight is unqualified, he will be refused to take the exam or be admitted. Candidates who fail the power grid physical examination need to fill their eyes in time to determine whether their eyesight meets the requirements. If not, you should seek medical advice in time to avoid accidents. Moreover, applicants who fail the power grid physical examination need to be examined by ophthalmologists before entering the examination to determine whether they meet the vision requirements. If it does not meet the requirements, it is necessary to re-examine the eyes to determine whether the vision meets the requirements.

The whole power system composed of substations and transmission and distribution lines with various voltages is called power grid. It includes three units: conversion, transmission and distribution. The task of power grid is to transmit and distribute electric energy and change voltage.