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Workflow {"t":"root","d":0,"v":"","c":[{"t":"heading","d":1,"p":{"lines":[0,1]},"v":"Testa","c":[{"t":"heading","d":2,"p":{"lines":[2,3]},"v":"test1"},{"t":"heading","d":2,"p":{"lines":[4,5]},"v":"test2"}]},{"t":"heading","d":1,"p":{"lines":[6,7]},"v":"Testb","c":[{"t":"heading","d":2,"p":{"lines":[8,9]},"v":"test1"},{"t":"heading","d":2,"p":{"lines":[10,11]},"v":"test2"}]}],"p":{}} 一般kappa越小越准确，越难收敛，与杨氏模量成正比设置why IPC is expensive? it do CCD at each Newton iteration, rather than once per time st...