Your counter signature is not in agreement with the signature on the upper left corner.

您的复签和左上角的签字不一致.

Enclosed please find our Sales Contract No. in duplicate for your counter-signature. Please sign and return one copy to us for our records as soon as possible.

随函附上我方号合同一式两份，请会签后尽快寄回一份供我方备案。

To counter hacking threats, Humphreys recommended that the Department of Homeland Security fund creation of an authentication signature for civilian GPS signals.

为了对付黑客的威胁，堪建议国土安全部基金设立认证签名的民用GPS信号。

Enclosed please find our Sales Contract No. 3949 in duplicate for your counter-signature.

随函附寄地3949号销售合同一式两份，请会签，并尽早寄回一份。