If you want to change selection, open original toplevel document below and click on "Move attachment"
Parent (intermediate) annotation
Open it 刚度跟什么有关系呢？简单说，柱子越多，柱子越粗，就越难推动这个房子，所以 刚度就越大。反过来，柱子越少，柱子越细，就容易被推动，刚度也就越小。另外 呢，刚度还跟高度有关系，同样的柱子数量，同样的柱子粗细，一个房子比较高， 相对就高瘦一些，下盘也就不那么稳了，刚度也就小一些，另一个房子比较矮，又 矮又胖，这就难推动了，刚度也就会大一些。
Original toplevel document (pdf)
owner: bian222 - (no access) - ★★★★★地震力到底是怎么算出来的——有书签.pdf, p2
Summary
status
not learned
measured difficulty
37% [default]
last interval [days]
repetition number in this series
0
memorised on
scheduled repetition
scheduled repetition interval
last repetition or drill
Details
No repetitions
Discussion
Do you want to join discussion? Click here to log in or create user.