这就是为什么高频变压器经常有空气的核心。
This is why high frequency transformers often have an air core.
这种缺乏静态，直流偏移电流输出变压器的核心手段，可更小，因为它不需要空气间隙，以防止核心饱和从静态直流偏移电流。
This lack of static, DC offset current in the output transformer means that the core can be made smaller, because it requires no air gap to prevent core saturation from the static DC offset current.
这个无意识的空气缺口足够阻止样品变压器发生饱和。
This unintended air gap was enough to keep the sample transformers from saturating.
但我们将变压器产品移到海外工厂生产，工厂正确地使用没有空气缺口的变压器。
Once we moved production of the transformers to the overseas factory, that facility correctly built the transformers without an air gap.
SC9系列环氧树脂浇注干式配电变压器和空气绝缘的SG型干式变压器绝缘性能好， 抗短路能力强，耐雷电冲击水平高。
SC9 epoxy cast dry-type distribution line transformers and air-insulated dry-type transformers SG, good insulation, anti-short circuit ability, resistance to high levels of lightning impulse.
SC9系列环氧树脂浇注干式配电变压器和空气绝缘的SG型干式变压器绝缘性能好， 抗短路能力强，耐雷电冲击水平高。
SC9 epoxy cast dry-type distribution line transformers and air-insulated dry-type transformers SG, good insulation, anti-short circuit ability, resistance to high levels of lightning impulse.
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