202206学习

iyxx37 · 发表于 2022-6-15 22:14:12

6.15自治微分方程的图形解

佳创兴2015 · 发表于 2022-6-16 21:50:50

6.16 They are hanging the curtains over the window.

佳创兴2015 · 发表于 2022-6-17 22:26:00

furniture , cupboard

佳创兴2015 · 发表于 2022-6-19 13:47:13

Wooden pallets

佳创兴2015 · 发表于 2022-6-20 22:18:18

A 45-gallon oil drum on a wooden pallet.

佳创兴2015 · 发表于 2022-6-21 20:34:13

Curtian, catpet, ambulance , licence .

佳创兴2015 · 发表于 2022-6-22 21:43:31

draw, desk drawer, engineering drawing.

佳创兴2015 · 发表于 2022-6-26 21:16:48

万用表， Vrms, 有效值/均方根值

佳创兴2015 · 发表于 2022-6-27 19:38:51

What an awesome neightborhood .

佳创兴2015 · 发表于 2022-6-28 22:40:51

6.28
What a pity that it's so expensive .
sine
cosine
tangent

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