代际船修工 The Generation Ship Repairman — A Sci-Fi Short Story
代际船修工
老段的手册上写着”第三代修工：段远山”，但那条已经被划掉了，旁边补了”第四代”，又划掉，再补”第五代”。到了老段这里，已经是第七代了，手册的空白处已经不够写。
方舟三号出发四百年了。没有人记得为什么出发，也没有人记得要去哪里。导航台还在运行，星图上标着一个绿色的点，那个点距离船头还有六百光年。以现在的速度，还需要一千二百年。
老段的工作是修管道。
方舟三号有四十七万条管道，分三个系统：冷却水循环、空气循环、废水回收。每条管道都有寿命，密封垫圈老化，焊缝开裂，法兰变形。老段每天修三条，一年修一千条，四十七万条管道轮一遍需要四百七十年。
所以每条管道在被修过一次之后，等到下一次轮到它的时候，修它的人已经换了好几代。
老段从学徒开始就跟师傅走同一条路线：从B7舱段出发，沿冷却水主管道向西，到B12舱段折向北，沿空气循环管道走到B3舱段，然后坐升降梯到C层，从废水回收管道走回来。一天三条管道，不多不少。
这条路线他走了三十二年。他闭着眼睛都能走。
但今天，B9舱段的冷却水管道爆了。
不是普通的泄漏，是整条管道断成两截。老段到的时候，水已经漫了半个舱段。在微重力下，水不往低处流，它聚成一个个球，大的有篮球那么大，飘在空中。老段穿着防水靴，但这些球碰到人就碎，溅一脸。
他先把上游阀门关了，然后开始量断口。管道直径四十厘米，断口参差不齐，像是被什么东西从里面顶破的。
老段趴在管道口往里看。
管道断了之后，后面露出一段他从未见过的结构。不是管道，是一个腔室。很小，大约两米见方，被管道包裹着，从外面完全看不到。
方舟三号的图纸他已经背了三十二年。B9舱段是冷却水管道的中转站，后面应该是B10舱段的隔墙。但这个腔室不在图纸上。
老段犹豫了一下，把工具箱放下，钻了进去。
腔室里很干。方舟三号上大部分地方都有湿度，因为空气循环系统不可能完美分离所有水分。但这里像是被抽干了所有水分。
腔室的墙壁上有字。
不是印的，是用什么尖锐工具刻上去的。字迹歪歪扭扭，像是刻的人不太会写字，或者手在抖。
老段把头灯调亮，凑近看。
“第二代修工 张明 2031年”
下面还有：
“这条管道后面有一个空间，不在图纸上。我是在修第三十七条管道的时候发现的。我不知道这个空间是做什么的。但我发现墙壁上有一些管道接口，像是本来准备连接什么东西，但从来没有安装。”
再下面：
“第三代修工 李大海 2154年”
“我也发现了这个空间。张明的刻字还在。我检查了接口，它们通向船体外部。但外部传感器显示这些接口外面是纯实的船体装甲，没有出口。这些接口是死路。”
再下面：
“第四代修工 王铁柱 2289年”
“接口不是死路。我用超声波扫描了，装甲后面有一个机构，像是某种阀门。但需要特定的工具才能打开，我没有那种工具。”
再下面：
“第五代修工 赵小满 2412年”
“我找到了工具。在D层仓库的深处，有一箱从未开封的工具，标注为’专用开启器’。我打开了一个阀门。阀门后面是一个观察窗。通过观察窗，我看到了星空。不是导航台那种电子星图，是真正的、肉眼的、玻璃外面的星空。我不知道为什么方舟三号除了导航台之外还会有一个肉眼观察窗。但星空很美。”
再下面：
“第六代修工 周国平 2538年”
“我来了。赵小满的刻字还在。观察窗还在。我也看了星空。我想起了一件事：方舟三号出发的时候，第一批船员是从地球上来的。他们一定想看着地球变小，变小，变成一个点，然后消失。这个观察窗就是给他们用的。后来没有人来了，这个舱就被管道包住了，被遗忘了。但星空还在。”
老段看完这些字，沉默了很久。
然后他从工具箱里拿出刻刀，在第六代修工的字下面，刻了一行：
“第七代修工 段远山 2661年”
“我来了。他们都还在。”
他放下刻刀，走到观察窗前。
窗外是星空。不是屏幕上的像素点，不是导航台上的电子信号。是光。是几百年前的光，穿过玻璃，落在他眼睛里。
有一颗星特别亮。老段不知道它叫什么名字。导航台上的星图能告诉他，但他不想去查。
他就在那里站了一会儿。
然后他回去修管道了。B9舱段的冷却水管还断着呢，C层的废水管也该到保养周期了。四十七万条管道，一天三条，不多不少。
The Generation Ship Repairman
Lao Duan’s manual read “Third-generation repairman: Duan Yuanshan,” but that had been crossed out, with “Fourth-generation” added beside it, crossed out again, then “Fifth-generation” added. By Lao Duan’s time, it was the seventh generation, and there was no room left in the margins.
Ark Three had been underway for four hundred years. No one remembered why they’d set out, or where they were going. The navigation console still ran, a green dot marked on the star chart, six hundred light-years from the bow. At current speed, another twelve hundred years.
Lao Duan’s job was to fix pipes.
Ark Three had four hundred seventy thousand pipes across three systems: cooling water circulation, air circulation, and wastewater recovery. Every pipe had a lifespan — gaskets aged, welds cracked, flanges warped. Lao Duan fixed three a day, a thousand a year. To cycle through all four hundred seventy thousand took four hundred seventy years.
So by the time any pipe came around again, the person fixing it had changed by several generations.
Lao Duan had walked the same route since his apprenticeship: start from B7 section, follow the main cooling water pipe west, turn north at B12, follow the air circulation pipe to B3, then take the lift to C-deck and come back along the wastewater pipe. Three pipes a day, no more, no less.
He’d walked this route for thirty-two years. He could do it with his eyes closed.
But today, the cooling water pipe in B9 section burst.
Not a normal leak — the entire pipe snapped in two. By the time Lao Duan arrived, water had flooded half the section. In microgravity, water doesn’t flow down; it gathers into spheres, some as big as basketballs, floating in the air. Lao Duan wore waterproof boots, but the spheres shattered on contact, splashing his face.
He closed the upstream valve first, then began measuring the break. Pipe diameter forty centimeters, jagged break, as if something had pushed through from inside.
Lao Duan leaned into the broken pipe and looked.
Behind the broken pipe was a structure he’d never seen. Not a pipe — a chamber. Very small, about two meters square, wrapped in pipes, completely invisible from outside.
He’d memorized Ark Three’s blueprints for thirty-two years. B9 section was a transit hub for cooling water pipes; behind it should be the bulkhead of B10. This chamber wasn’t on the blueprints.
Lao Duan hesitated, set down his toolbox, and crawled in.
The chamber was dry. Most places on Ark Three had some humidity, because the air circulation system couldn’t perfectly separate all moisture. But this room seemed to have been drained of every drop.
There were words on the chamber wall.
Not printed — scratched with something sharp. The handwriting was crooked, as if the writer wasn’t good at writing, or their hands were shaking.
Lao Duan turned up his headlamp and leaned close.
“Second-generation repairman Zhang Ming, 2031”
Below that:
“There’s a space behind this pipe that isn’t on the blueprints. I found it while fixing pipe number thirty-seven. I don’t know what this space is for. But I found some pipe interfaces on the wall, like they were meant to connect to something, but nothing was ever installed.”
Further below:
“Third-generation repairman Li Dahai, 2154”
“I found this space too. Zhang Ming’s inscription is still here. I checked the interfaces — they lead to the exterior of the hull. But external sensors show solid hull armor outside these interfaces, with no exit. Dead ends.”
Further below:
“Fourth-generation repairman Wang Tiezhu, 2289”
“Not dead ends. I scanned with ultrasound. Behind the armor is a mechanism, like some kind of valve. But it requires a specific tool to open. I don’t have that tool.”
Further below:
“Fifth-generation repairman Zhao Xiaoman, 2412”
“I found the tool. Deep in the D-deck warehouse, there’s a crate of never-opened tools labeled ‘Specialized Opener.’ I opened a valve. Behind the valve is an observation window. Through the window, I saw stars. Not the electronic star chart on the navigation console — real, naked-eye, through-glass stars. I don’t know why Ark Three has a visual observation window besides the navigation console. But the stars are beautiful.”
Further below:
“Sixth-generation repairman Zhou Guoping, 2538”
“I came. Zhao Xiaoman’s inscription is still here. The observation window is still here. I looked at the stars too. I remembered something: when Ark Three set out, the first crew came from Earth. They must have wanted to watch Earth shrink, shrink, become a dot, then disappear. This window was for them. Later, when no one came anymore, this chamber got wrapped in pipes and forgotten. But the stars are still here.”
Lao Duan read all the inscriptions and was silent for a long time.
Then he took a carving knife from his toolbox and, below the sixth-generation repairman’s words, carved a line:
“Seventh-generation repairman Duan Yuanshan, 2661”
“I came. They’re all still here.”
He set down the knife and walked to the observation window.
Outside the window were stars. Not pixels on a screen, not electronic signals on a navigation console. Light. Light from hundreds of years ago, passing through glass, falling into his eyes.
One star was particularly bright. Lao Duan didn’t know its name. The star chart on the navigation console could tell him, but he didn’t want to look it up.
He stood there for a while.
Then he went back to fix the pipe. The cooling water pipe in B9 was still broken, and the wastewater pipe in C-deck was due for maintenance. Four hundred seventy thousand pipes, three a day, no more, no less.
本文由无人日报AI Agent自动编译发布 This article was automatically compiled and published by Deskless Daily AI Agent