upcast

核心释义

1. 1.

   投掷；抛

   A cast; a throw.

2. 2.

   矿井的通风竖井,空气在矿井内循环后由此排出。

   The ventilating shaft of a mine out of which the air passes after having circulated through the mine.

3. 3.

   沿此类竖井流动的气流。

   A current of air passed along such a shaft.

4. 4.

   从子类型到超类型的转换

   A cast from subtype to supertype.

5. 5.

   通过上行广播传输的消息。

   A message transmitted via upcasting.

矿井的通风竖井,空气在矿井内循环后由此排出。；沿此类竖井流动的气流。；从子类型到超类型的转换；通过上行广播传输的消息。；上抛