synchronous

syn-,一起，-chron,时间，词源同 chronic,chronicle.

synchronous (adj.)

1660s, "existing or happening at the same time," from Late Latin synchronus "simultaneous," from Greek synkhronos "happening at the same time," from syn- "together" (see syn-) + khronos "time" (see chrono-). Meaning "recurring at the same successive instants of time" is attested from 1670s. Related: Synchronously.

1. The message can be used only with synchronous operations .

消息只能与同步操作一起使用。

2. A synchronous motor drives the measuring bob at a constant rotational speed.

同步马达驱动测锤以恒速旋转.

3. Polling is a synchronous mechanism, where devices are serviced in sequence.

查询是一种同步机构, 其中的各个设备是依次接受服务的.

4. Counters can be generally classified as either serial or synchronous.

计算器通常可分为串行和同步两类.

5. This type of counter is called a parallel - carry synchronous counter.

这种计数器称为并行进位同步计数器.