It is one of the world ' s finest fire brigades , with well - trained personnel , advanced communication systems , and modern equipment and appliances 消防處是國(guó)際間最優(yōu)秀的消防部隊(duì)之一,屬下人員訓(xùn)練有素,并擁有先進(jìn)通訊系統(tǒng)及新型消防車輛和裝備。
It is one of the world s finest fire brigades , with well - trained personnel , advanced communication systems , and modern equipment and appliances 消防處是全球最優(yōu)秀的消防部隊(duì)之一,屬下人員訓(xùn)練有素,并擁有先進(jìn)通訊系統(tǒng)和新型消防車輛及裝備。
It is one of the world s finest fire brigades , with well - trained personnel , advanced communication systems , and modern equipment and appliances . the department responded to 消防處是全球最優(yōu)秀的消防部隊(duì)之一,屬下人員訓(xùn)練有素,并擁有先進(jìn)通訊系統(tǒng)和新型消防車輛和裝備。
One of the tasks an advanced communications system must perform is the acquisition of a base station transmitter by the receiver in a customer device transceiver when the customer device is powered on and at various other times , for example to support handoff of the customer device between base statoin 高級(jí)通信系統(tǒng)必須執(zhí)行的任務(wù)之一是在客戶設(shè)備開(kāi)機(jī)時(shí)以及在各種其它時(shí)刻諸如支持在基站之間傳遞客戶設(shè)備時(shí)由客戶設(shè)備收發(fā)器中的接收器獲取基站發(fā)射機(jī)(所發(fā)出的信號(hào)) 。
One of the tasks an advanced communications system must perform is the acquisition of a base station transmitter by the receiver in a customer device transceiver when the customer device is powered on and at various other times , for example to support handoff of the customer device between base statoin 高級(jí)通信系統(tǒng)必須執(zhí)行的任務(wù)之一是在客戶設(shè)備開(kāi)機(jī)時(shí)以及在各種其它時(shí)刻諸如用戶設(shè)備在基站之間的切換時(shí)由客戶設(shè)備收發(fā)器中的接收器獲取基站發(fā)射機(jī)(所發(fā)出的信號(hào)) 。
Direct sequence spread spectrum ( ds - ss ) system modulates a data sequence to a high speed pseudorandom ( pn ) sequence , which extends the bandwidth of the modulated signal while decreasing the power spectrum density . it is an advanced communication system with many excellent properties such as multiple access , low probability of interception , anti - jamming and so widely used 直接序列擴(kuò)譜通信是用一個(gè)高速的偽隨機(jī)序列調(diào)制一個(gè)數(shù)據(jù)序列,以展寬并降低信號(hào)的功率譜密度的一種先進(jìn)的通信體制,能獲得多址接入、低截獲特性和抗干擾能力,因此具有廣泛的應(yīng)用。