polling time-sharingpolling, time-sharing共时: synchronic询: ask; inquire分时轮询: timesharing polling定时轮询监视: timed polling monitoring实时轮询服务: rtps: real-time polling service下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:共时轮询，即可在微信中查询翻译
