锟斤拷锟斤拷锟斤拷胃锟矫忥拷(f锟斤拷)锟斤拷(x锟斤拷)锟斤拷锟斤拷一锟�(xi锟斤拷ng)锟教學(xu锟斤拷)锟斤拷锟絞(sh锟斤拷)锟斤拷小锟斤拷锟斤拷V锟斤拷锟斤拷锟窖撅拷輯锟剿旓拷(sh锟斤拷)锟絎(xu锟斤拷)锟斤拷锟絯锟阶猴拷锟斤拷锟絜(cu锟斤拷)知锟絉(sh锟斤拷)锟絚(di锟斤拷n)锟斤拷希锟斤拷锟斤拷锟絍锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷!

锟斤拷锟斤拷1.锟斤拷锟斤拷锟斤拷锟剿匡拷锟絞锟紻锟斤拷锟斤拷平锟斤拷锟较碉拷直锟絕锟斤拷锟斤拷锟斤拷?(斜锟斤拷锟統锟斤拷锟斤拷)锟斤拷

锟斤拷锟斤拷2.锟斤拷锟斤拷平锟叫猴拷锟斤拷锟斤拷平锟叫的讹拷锟絰锟斤拷锟叫讹拷锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟剿嗭拷?锟斤拷锟斤拷平锟叫★拷锟斤拷锟斤拷平锟斤拷锟斤拷锟斤拷锟斤拷平锟斤拷锟紷锟斤拷锟斤拷之锟絞锟斤拷聯(li锟斤拷n)系锟斤拷锟紻(zhu锟斤拷n)锟斤拷锟节斤拷Q锟斤拷锟阶嗭拷锟絵锟叫的戯拷(y锟斤拷ng)锟斤拷锟斤拷锟斤拷锟接碉拷?每锟絅平锟斤拷之锟絞锟紻(zhu锟斤拷n)锟絈锟侥條锟斤拷锟斤拷什么?

锟斤拷锟斤拷3.锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟芥定锟斤拷锟斤拷記住锟剿嗭拷?锟斤拷知锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絇(gu锟斤拷n)锟絀锟斤拷什么锟斤拷?(一锟斤拷锟斤拷锟侥撅拷锟斤拷锟斤拷锟斤拷直锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷拇锟斤拷锟斤拷锟斤拷P(gu锟斤拷n)锟絀)一锟斤拷锟斤拷直锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絇(gu锟斤拷n)锟絀锟斤拷锟斤拷直锟斤拷處見

锟斤拷锟斤拷4.锟斤拷锟斤拷平锟叫碉拷锟叫讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟节戯拷(y锟斤拷ng)锟矫時(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷(g锟斤拷)锟絣锟斤拷锟斤拷锟斤拷锟紷锟斤拷锟斤拷(g锟斤拷)锟絣锟斤拷锟阶伙拷锟揭徽�;锟斤拷锟斤拷平锟叫碉拷锟叫讹拷锟斤拷锟斤拷锟阶把條锟斤拷锟絜(cu锟斤拷)锟絗锟斤拷記锟斤拷”一锟斤拷(g锟斤拷)平锟斤拷锟�(n锟斤拷i)锟侥兩條锟洁交直锟斤拷锟絚锟斤拷一锟斤拷(g锟斤拷)平锟斤拷锟�(n锟斤拷i)锟侥兩條锟洁交直锟斤拷锟街別平锟斤拷”锟斤拷锟斤拷(d锟斤拷o)锟斤拷锟紺锟斤拷锟絕锟教跨步太锟斤拷锟斤拷

锟斤拷锟斤拷5.锟斤拷蓷l锟斤拷锟斤拷直锟斤拷锟斤拷锟缴的斤拷锟斤拷直锟斤拷锟絚平锟斤拷锟斤拷锟缴的角和讹拷锟斤拷菚r(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟侥角烇拷90°锟斤拷锟斤拷么锟酵诧拷要锟斤拷锟斤拷還锟斤拷一锟絅锟斤拷堑姆锟斤拷锟斤拷锟斤拷锟斤拷C锟斤拷锟斤拷锟斤拷锟斤拷直锟侥凤拷锟斤拷锟斤拷

锟斤拷锟斤拷6.锟斤拷锟斤拷直锟斤拷锟斤拷锟缴斤拷锟斤拷锟斤拷“平锟狡凤拷”锟斤拷锟絩(sh锟斤拷)锟斤拷一锟斤拷要注锟斤拷平锟狡猴拷锟斤拷锟矫角碉拷锟斤拷锟斤拷锟斤拷锟�(锟斤拷锟斤拷锟絘(b锟斤拷)锟斤拷)锟斤拷锟截別锟斤拷锟絵目锟斤拷锟絍锟斤拷锟斤拷直锟斤拷锟斤拷锟缴斤拷锟斤拷锟斤拷(y锟斤拷ng)锟矫時(sh锟斤拷)一锟斤拷要锟斤拷锟絵锟斤拷锟斤拷l(f锟斤拷)锟斤拷锟斤拷锟斤拷锟絁锟斤拷還锟斤拷锟斤拷锟絘(b锟斤拷)锟斤拷锟斤拷還锟角兩種锟斤拷r锟斤拷锟叫匡拷锟杰★拷

锟斤拷锟斤拷7.锟缴條锟斤拷锟斤拷直锟斤拷锟斤拷锟缴的角的凤拷锟斤拷锟斤拷0°≤α≤90°

锟斤拷锟斤拷直锟斤拷锟絚平锟斤拷锟斤拷锟缴的角的凤拷锟斤拷锟斤拷0°≤α≤90°

锟斤拷锟斤拷锟斤拷锟斤拷堑锟狡斤拷锟角碉拷取值锟斤拷锟斤拷锟斤拷0°≤α≤180°

锟斤拷锟斤拷8.平锟斤拷D锟轿的凤拷锟斤拷锟斤拷锟斤拷锟絯锟紻锟轿碉拷展锟絖锟斤拷一類嗭拷锟絵锟斤拷要注锟解翻锟斤拷锟斤拷展锟絖前锟斤拷锟斤拷锟絇(gu锟斤拷n)锟阶猴拷元锟截碉拷“锟斤拷變锟斤拷”锟絚“锟斤拷變锟斤拷”锟斤拷

锟斤拷锟斤拷9.锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷平锟斤拷锟斤拷锟斤拷锟絯锟絚锟絃锟斤拷锟絯锟斤拷锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟紷些知锟絉(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟剿嗭拷?(注锟斤拷锟絓(y锟斤拷n)锟斤拷锟斤拷锟斤拷锟侥凤拷锟斤拷锟斤拷锟絵)

锟斤拷锟斤拷10.锟斤拷锟斤拷锟斤拷锟絴(zh锟斤拷);锟斤拷(j锟斤拷ng)锟斤拷锟饺讹拷锟絰锟阶伙拷锟斤拷锟斤拷(j锟斤拷ng)锟饺烇拷锟斤拷锟角ｏ拷锟斤拷锟饺為線锟斤拷锟�锟斤拷锟斤拷锟斤拷锟斤拷x锟斤拷锟斤拷;锟斤拷谋锟斤拷锟絜锟斤拷锟絯锟絜锟斤拷式锟斤拷锟紷些知锟絉(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟剿嗭拷?

锟斤拷锟絇(gu锟斤拷n)锟斤拷锟絔锟斤拷

锟斤拷锟斤拷锟竭匡拷锟斤拷(sh锟斤拷)锟絎(xu锟斤拷)知锟絉(sh锟斤拷)锟絚(di锟斤拷n)锟絉锟斤拷

锟斤拷锟铰高匡拷锟結訊锟斤拷锟竭匡拷锟斤拷锟竭★拷锟斤拷前锟斤拷(zh锟斤拷n)锟斤拷锟斤拷志愿锟斤拷锟�(b锟斤拷o)锟斤拷锟饺★拷锟�?j锟斤拷n)?sh锟斤拷)锟斤拷锟斤拷

锟竭匡拷锟絩(sh锟斤拷)锟絞锟斤拷锟斤拷全锟斤拷锟斤拷要锟斤拷(ji锟斤拷)锟絚(di锟斤拷n)

锟組锟斤拷"锟竭匡拷锟絎(w锟斤拷ng)"微锟脚癸拷锟斤拷號(h锟斤拷o)