I would have thought a good old-fashioned paper ticket that is punched would have sufficed since the card was used exactly once - at the entrance!
我觉得一张质量良好的传统纸质打孔门票就足够了,因为这张卡就只在入口处用了一次!
You should strive to initialize every member variable exactly once during construction.
你应该努力在构造函数期间,将每个成员变量準确的初始化一次。
We also know that each worker that comes to work in the factory on a certain day, enters the factory exactly once and leaves it exactly once on that day.
我们也知道,这涉及到每个工人在工厂工作的某一天,只有一次进入工厂和叶子在这一天恰好一次。
Emitted exactly once for each message. No arguments. After emitted no other events will be emitted on the request.
每次完全接收完信息后都会触发一次,不接受任何参数。当这个事件被触发后,将不会再触发其他事件。
Uses the digits 1 through 9, in that order and exactly once each.
按顺序使用数字1到9,每个数字正好使用一次。
It would be best to define a logical type exactly once and use that definition throughout your interface.
最好是明确定义一次逻辑类型,然后在整个接口中不断使用该定义。
Match the lowercase letter exactly once by typing 1.
键入1,以指定仅匹配小写字母一次。
HTTPR also provides protocol rules making it possible to ensure that each message is delivered to its destination application exactly once or is reliably reported as undeliverable.
HTTPR还提供了协议规则,以保证每条消息可以正好一次地传递到目的应用程序,或是如实地报告消息无法传递。