a fuse
作可数名词，指电路里的保险丝，前面通常要用 a、the 等限定词。
The fuse in the plug had blown, so the lamp would not switch on.
插头里的保险丝烧断了，所以台灯开不了。
导火索；引信；火暴脾气；易怒；点火用的火柴；（生命游戏中的）熔丝图案；用于将火焰传导至火药、炸弹或类似爆炸物的引线或引信。
A protective device in an electrical circuit that melts and breaks the current when overloaded.
用于将火焰传导至火药、炸弹或类似爆炸物的引线或引信。
A wick or cord used to convey flame to gunpowder, a bomb, or similar explosive.
一种防止电路中因过载或短路而产生过大电流的装置,内含一个在电流过大时熔化并切断电流的元件。
A device to prevent excessive overcurrent from overload or short circuit in an electrical circuit, containing a component that melts and interrupts the current when too high a load is passed through it.
保险丝
an electrical device that can interrupt the flow of electrical current when it is overloaded
一种原本稳定且任意长的重复模式,当从一端受到扰动时,会以恒定速度将该扰动破坏性地传导至另一端。
An otherwise stable arbitrarily long repeating pattern that, when perturbed from one end, destructively carries that perturbation at a constant speed to the other end.
引信
any igniter that is used to initiate the burning of a propellant
容易发脾气的倾向。
A tendency to lose one's temper.
一种用于点火的火柴:
A kind of match for starting a fire:
The fuse blew when too many appliances were plugged in.
插了太多电器时，保险丝烧断了。
用法提示：这里fuse作为名词，指电路中的保险丝。
The old bomb had a fuse that was still intact.
那颗旧炸弹的引信仍然完好。
用法提示：这里fuse作为名词，指导火索或引信。
Check the fuse box if the lights go out.
如果灯灭了，检查一下保险丝盒。
用法提示：这里fuse作为名词，用于构成复合词fuse box，指保险丝盒。
作可数名词，指电路里的保险丝，前面通常要用 a、the 等限定词。
The fuse in the plug had blown, so the lamp would not switch on.
插头里的保险丝烧断了，所以台灯开不了。
复数形式 fuses，可指多个保险丝，也可指多条引信。
Older houses often still have ceramic fuses in the fuse box.
老房子里的保险丝盒里常常还装着陶瓷保险丝。
固定说法，表示某人容易发怒、脾气急躁。
Watch what you say — he has a short fuse today.
说话小心点，他今天脾气很火爆。
较fuse更具体，多指电触发装置，不可在所有语境中替换
特指爆破用雷管，与fuse含义相近但更专业
指炮弹或子弹的引爆装药，语境狭窄，不通用
grammar · medium
易错句子My dad blew up a fuse when he saw my report card.
正确表达My dad blew a fuse when he saw my report card.
blow a fuse 是固定搭配，意思是“大发雷霆”，中间不加 up。blow up 表示“爆炸、炸毁”，说 blew up a fuse 就变成了“把保险丝炸掉”，与想表达的“发脾气”不符，所以要删去 up。
grammar · medium
易错句子There are three fuse in the toolbox.
正确表达There are three fuses in the toolbox.
fuse 是可数名词，前面有 three 这类数词时，名词必须用复数形式 fuses。汉语名词没有单复数变化，学习者容易漏掉 -s 词尾而误用原形。
grammar · medium
易错句子Please replace fuse in the plug before you use the hair dryer.
正确表达Please replace the fuse in the plug before you use the hair dryer.
fuse 是可数名词单数形式，这里特指插头里那个双方都知道的保险丝，所以要用定冠词 the。汉语没有冠词系统，单数可数名词前常被漏掉冠词，补上 the 才符合英语语法。
指炸弹、炮弹、鱼雷上靠撞击或定时引爆的引信，多写作 fuze；家用电路里烧断的保险丝、以及老式炸药包的导火索则只能写 fuse。两者在“引信”这一义上重叠，但 fuze 一般不用于电路义。
拼写相近但读音不同：fuzz 读 /fʌz/，fuse 读 /fjuːz/，fuse 开头有 /j/ 音。意思也完全无关，fuzz 指细软的绒毛、模糊不清，或俚语中的警察，不能用来指保险丝或引信。
只差一个字母，但 fuss 读 /fʌs/，是名词“无谓的忙乱、大惊小怪”，或动词“瞎忙活”；fuse 是具体的物件（保险丝、引信），两者不能互换。
烧断保险丝；大发雷霆
The toaster blew a fuse and the lights went out.
烤面包机烧断了保险丝，灯全灭了。
暴脾气；动不动就发火
He has a short fuse and gets angry easily.
他脾气暴躁，很容易生气。
保险丝盒
Check the fuse box if the power goes out.
如果停电了，检查一下保险丝盒。
更换保险丝
You need to replace the fuse in the plug.
你需要更换插头里的保险丝。
点燃导火索
The soldier lit the fuse and ran for cover.
士兵点燃了导火索，然后跑向掩体。
保险丝是电路中的保护元件，当电流过大时熔断以断开电路
保险丝在电流超过额定值时熔断
过载是导致保险丝熔断的常见原因
断路器和保险丝都是电路保护装置，但断路器可重复使用
保险丝通常连接在电线中，以防止电线过热
大发雷霆，非常生气
When he saw the dent in his new car, he blew a fuse.
当他看到新车上的凹痕时，他大发雷霆。
脾气暴躁，容易发火
Be careful what you say to him; he has a very short fuse.
跟他说话要小心，他脾气很暴躁。
点燃引信！
Captain Jack Sparrow says this when he wants to ignite the fuse of an explosive.
杰克·斯派罗船长在想要点燃爆炸物的导火索时说这句话。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.
定时引信
The bomb was equipped with a time fuse.
炸弹装备了定时引信。