@beidamulanlaoshi: 难倒全班方程题,会做得都是学霸#教育 #孩子 #小学数学 #家长必看 #涨知识

北大木兰老师
北大木兰老师
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Region: IT
Sunday 08 February 2026 06:54:14 GMT
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user2381874866177
天狗鬼橘子 :
母積子差👍
2026-02-08 23:40:08
1
good.maths
Khong :
只限于连接数吗? 30 = 5 x 6 😳😳😳😳😳😳 如果是35 = 5 x 7 怎么办?
2026-03-14 14:49:23
0
user7347797957301
老郭 :
妙!
2026-02-15 06:42:19
0
user5363430209163
五星上將 :
我以前數學最差
2026-02-08 12:03:32
0
user1652637022043
user1652637022043 :
🥰🥰🥰
2026-02-13 12:49:18
0
tz100335
財滿庫 :
講解得很好,但是聽了頭還是很痛
2026-03-02 12:01:55
1
daygood_17
大古 :
有電子計算機這種題目,實在不需要再出,古時候沒電子計算機,會有很多解題技巧,這種設計好的題目跟腦筋急轉彎或猜謎一樣題目出來想不出來,看答案後又一目了然,
2026-02-08 15:10:11
1
user7336728003703
user7336728003703 :
🥰👍👍👍👍👍👍👍👍👍
2026-02-12 13:17:43
1
junshun7223
皓裕 :
👍👍👍
2026-02-10 19:34:48
0
user7939252783774
李欽文 :
😂😂😂
2026-03-04 01:31:15
0
usero5ilcm6jbm
楊玉春 :
👍👍👍
2026-03-02 02:49:15
0
rongrongshome
事實 :
😁
2026-02-13 09:54:05
0
steven.huang72
Steven Huang :
😮
2026-02-13 05:40:22
0
amesx886
アミシス :
心算高手不需要技巧 寫完解字的時間答案早出來
2026-02-12 10:56:27
0
1206yrrej
藍臉 :
第一
2026-02-08 08:27:46
0
kap.ai7
꧁那腰大叔꧂ :
括号里的4分之1和7分之1,不是两个减号么。在负数乘除法里不应该是负负得正吗?
2026-02-09 13:07:16
0
helloworld1394214
黄老鞋 :
先写分号再数字,北大的就是不一样👍👍👍
2026-02-09 05:50:20
0
geegh0
geegh :
28
2026-02-08 13:39:54
0
ori1881
ori1881 :
👍👍👍
2026-02-08 12:26:09
0
wente360
獅豹虎 :
45 56 67
2026-02-08 10:57:53
0
user92103784126015
𝑾𝒊𝒍𝒍𝒚.. :
厲害
2026-02-08 08:48:07
0
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Other Videos

After watching this video, I seriously started wondering for the first time: will machines eventually replace welders completely? To be honest, I already use welding robots in my factories and automatic welding machines on storage tank construction sites. But I’ve always felt that machines can be pretty demanding—the groove preparation needs to be right, fit-up needs to be accurate, and joint gaps need to be relatively consistent. Once conditions become more complicated, an experienced welder has often been more reassuring. But today, seeing equipment perform automatic root welding even with uneven joint gaps genuinely made me think. Machines are no longer simply repeating welds along preset paths. They are developing toward sensing actual joint conditions, adapting to gap variations, and automatically adjusting welding parameters. What will this mean for structural steel, storage tanks, piping, and pressure vessel fabrication? I’m not ready to draw a conclusion yet. But one thing is becoming increasingly clear: the “irregular” conditions that machines once struggled with were exactly what experienced welders were best at handling. Now, machines are gradually learning to handle them too. Will machines completely replace welders in the future? I don’t know. But I increasingly believe that the welder of the future may need to know not only how to weld, but also how to work with machines. #SteelStructure #StorageTank #Factory #IndustrialAutomation #smartmanufacturing
After watching this video, I seriously started wondering for the first time: will machines eventually replace welders completely? To be honest, I already use welding robots in my factories and automatic welding machines on storage tank construction sites. But I’ve always felt that machines can be pretty demanding—the groove preparation needs to be right, fit-up needs to be accurate, and joint gaps need to be relatively consistent. Once conditions become more complicated, an experienced welder has often been more reassuring. But today, seeing equipment perform automatic root welding even with uneven joint gaps genuinely made me think. Machines are no longer simply repeating welds along preset paths. They are developing toward sensing actual joint conditions, adapting to gap variations, and automatically adjusting welding parameters. What will this mean for structural steel, storage tanks, piping, and pressure vessel fabrication? I’m not ready to draw a conclusion yet. But one thing is becoming increasingly clear: the “irregular” conditions that machines once struggled with were exactly what experienced welders were best at handling. Now, machines are gradually learning to handle them too. Will machines completely replace welders in the future? I don’t know. But I increasingly believe that the welder of the future may need to know not only how to weld, but also how to work with machines. #SteelStructure #StorageTank #Factory #IndustrialAutomation #smartmanufacturing

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