<form id="rh99d"><form id="rh99d"></form></form>

      <form id="rh99d"></form>

      <address id="rh99d"><nobr id="rh99d"><nobr id="rh99d"></nobr></nobr></address>
      <form id="rh99d"></form>

          <form id="rh99d"><nobr id="rh99d"><meter id="rh99d"></meter></nobr></form>

          <address id="rh99d"><nobr id="rh99d"><nobr id="rh99d"></nobr></nobr></address>

              <address id="rh99d"><nobr id="rh99d"><nobr id="rh99d"></nobr></nobr></address>

                    <address id="rh99d"></address>
                    <form id="rh99d"></form>
                    <form id="rh99d"></form>

                            ?

                            語音播放系統

                                    前端基站處可安裝室外音柱,配合拾音器,可實現與后端監控室的雙向音頻功能,即后端監控管理中心可通過音柱向前端喊話,或者播放語音信息。通過拾音器可以在后端了解到前端基站處人員談話信息。



                            久久精亚洲国产一区二区|精品露脸国产偷人在视频7|亚洲日韩欧美视频看在线|国产免费久久久久久无码

                              <form id="rh99d"><form id="rh99d"></form></form>

                                <form id="rh99d"></form>

                                <address id="rh99d"><nobr id="rh99d"><nobr id="rh99d"></nobr></nobr></address>
                                <form id="rh99d"></form>

                                    <form id="rh99d"><nobr id="rh99d"><meter id="rh99d"></meter></nobr></form>

                                    <address id="rh99d"><nobr id="rh99d"><nobr id="rh99d"></nobr></nobr></address>

                                        <address id="rh99d"><nobr id="rh99d"><nobr id="rh99d"></nobr></nobr></address>

                                              <address id="rh99d"></address>
                                              <form id="rh99d"></form>
                                              <form id="rh99d"></form>