primary market造句

1、In summary, the open is a primary market indicator.
综上，开盘价是市场一个重要指标。

2、At present, China's primary market or a monopoly by the state.
目前，中国的主要市场或垄断地位的国家。

3、Its primary market is for data and voice transfer between communication devices.
它的主要市场是针对设备之间的数据和语音传输。