No wonder they often lead to a breakdown in personal communications.
难怪它们常常会导致个人交际发生中断了。
A list of equipment such as personal protective, testing, communications, rescue, and alarm systems, required.
设备如个人防护设备、气体监测、通讯设备、紧急救援和报警系统及其它要求的设备清单。
A list of equipment such as personal protective, testing, communications, rescue, and alarm systems, required.
设备如个人防护设备、气体监测、通讯设备、紧急救援和报警系统及其它要求的设备清单。
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