张桥火车站是蒲城:emit transmit discharge expel 之间的区别

emit
vt.
1. 散发,放射;发出
The chimney emitted thick smoke into the air.
烟囱向空中散发出浓烟。
2. 发表(意见等);发出声音
John emitted a few curses.
约翰发出几声诅咒。

transmit
vt.
1. 传送,传达
I will transmit the money by special messenger.
我将专门派人送这笔钱。
2. 传(光、热、声等);传动
They are trying to find a better way of transmitting energy.
他们正试图寻找一种更好的输能方法。
3. 遗传;留传[(+to)]
Genes are transmitted from one generation to another.
基因代代相传。
4. 发射;播送[(+to)]
The message was transmitted by radio.
这情报是用无线电发送的。
5. 传播;传染[(+to)]
Rats transmit disease.
老鼠传播疾病。
vi.
1. 播送信号;发报

dischange
vt.
1. 排出(液体,气体等)
Some factories in this locality still discharge waste water into the river.
这一地区有些工厂仍把废水排入河中。
2. 允许...离开;释放;解雇[H][(+from)]
My brother was discharged from hospital last week.
我兄弟上周出院。
3. 使免除,使卸脱[(+from)]
4. 履行,清偿
He discharged the responsibilities of his job whole-heartedly.
他全心全意地履行自己的职责。
5. 卸(货物等);卸下(船)上的货物[(+from/of)]
They discharged the cargo at Hong Kong.
他们在香港卸了货。
6. 射出;开(炮等)[(+at/into)]
7. 【律】撤销(法院命令)
vi.
1. 排出液体(或气体等);(江河)流注[Q]
2. (船等)卸货
3. (枪炮等)发射
4. (水泡)出水
The wound discharged constantly.
伤口不断地流脓。
n.
1. 排出,流出[U]
2. 释放;解雇[U]
The prisoner was glad to get his discharge.
囚犯获准释放,感到很高兴。
3. 解职令;退伍证明书[C]
4. 执行,履行[U]
She is competent in the discharge of her duties.
她善于履行职责。
5. 卸货[U]
6. 发射,开炮[U]
7. 放出气体,液体;放出的电[C]

expel
vt.[(+from)]
1. 驱逐,赶走
They expelled the journalist from their country.
他们把这个记者驱逐出境。
2. 排出;喷出(空气等)
Water is sucked in at one end and expelled at the other.
水从一端吸进去从另一端排出来。
3. 把...除名,开除
He was expelled from the club.
他被俱乐部除名了。