In nhãn s?n ph?m có r?t nhi?u ph??ng pháp ???c s? d?ng th?c t? trong ?ó in offset và in k? thu?t s? là ?ng d?ng ph? bi?n h?n. Shroud-The soft iron casing encompassing the electromagnetic lenses of your TEM. Solenoid-An electromagnetic lens fashioned by copper windings having a immediate recent working as a result of it.D?a vào m?c ?ích, c?