envelop curve的相关资料：
临近单词
envelop
envelop feature extraction
enveloping surface of folds
envelopment on double flanks
envelop a subject in mystery
enveloping worm gear reducer
enveloping worm-gear reducer
envelop style strip packing machine
Envelop of cyclic moment-rotation response
Enveloping without Instantaneous Velocity Center
