在12/3我們寄給你的信件中，我們向你解釋由於客戶的刀桿內孔尺寸較大，

在12/3我們寄給你的信件中，我們向你解釋由於客戶的刀桿內孔尺寸較大，所以客戶的產品不適用我們公司的新產品，只適用我們的舊產品

結果 (英文) 1:

In the 12/3 we sent your letter, we explain to you due to internal customers Arbor larger pore sizes, so customers do not apply to our company's new products, applies only to our old products

結果 (英文) 2:

In the letter we sent you at 12/3, we explain to you that due to the large size of the customer's knife rod hole, the customer's product does not apply to our company's new products, only our old products apply

結果 (英文) 3:

In our letter of 12 / 3, we explained to you that the customer's products are not suitable for our new products, but only for our old products because of the large size of the inner hole of the cutter bar