The marshaling packet identifies an unknown object.

整理资料包识别了一个未知物件。

For book 7 JKR has once again chosen an unknown object as the title.

对于第七部，罗琳又一次选择了一个未知的物品作为书名。

The Department of Defense is confirming reports of an unknown object entering Earth's atmosphere.

美国国防部证实了有关一个未知物体进入地球大气层的报道。

This paper presents a method to identify the inertial parameters of unknown object handled by the manipulator on a 4-degree-of-freedom (DOF) dual-arm space robot.

给出了双臂四自由度空间机器人捕捉未知目标的参数辨识方法。