on-call的用法和样例：
例句
用作名词 (n.)
- With ringing tone and auto display on screen on calls.
被呼叫时发出电话铃声及自动显示访客影像。
on-call的相关资料：
临近单词
Onnen
on
On Differential Treatment of Impotence
on-demand virtual machine deployment
On Offset Printing Machine Maintenance
on-off time proportioning controller
On Historicity and Historical Narrator
On Translation of English Prepositions
On North's Institutional Change Theory
On Arbitrariness of Language Semiotics
on-line secured communications system
On Code Obfuscation Security Technology
