我们需要一些初级的指导。

We need some primary guidance.

这是一个初级的英语课程。

This is a primary English course.

他在学校学习初级数学。

He is studying primary math at school.

她的初级目标是通过考试。

Her primary goal is to pass the exam.

初级阶段的学习很重要。

Learning at the primary stage is important.

初级线圈是变压器的一部分。

The primary coil is a part of the transformer.

你需要检查初级线圈是否有损坏。

You need to check if the primary coil is damaged.

电流通过初级线圈时会产生磁场。

When current passes through the primary coil, it creates a magnetic field.

这个实验需要一个初级线圈和一个电源。

This experiment requires a primary coil and a power source.

初级线圈和次级线圈之间有电感耦合。

There is inductive coupling between the primary coil and the secondary coil.