altern交错群落alterv.改变；更改；阉割；切除卵巢Alternaria panaxn.人参链格孢alternating path交替路alternating step交替滑进Altering posture姿势变革Alternaria vitisn.葡萄链格孢Alternaria citrin.柑橘链格孢alternating bond更迭键alternating load更迭载荷,应变载荷,交替荷载,反复载荷,交变负载,交替载荷alternating prey交替捕食alternating knot交错纽结