Studies of living birds, like chukar partridges, have shown that birds can get a better grip on inclined surfaces, like tree trunks and rocks, when they flap their wings as they run.
对 chukar 鹧鸪等现存鸟类的研究表明，鸟类在奔跑时拍打翅膀可以更好地抓住倾斜的表面，例如树干和岩石。
Chukar partridge
原声例句
PBS地球-动物趣闻
中文百科
石鸡
石鸡（学名：Alectoris chukar）为雉科石鸡属的鸟类，俗名朵拉鸡、红腿鸡、嘎嘎鸡。分布于欧洲、西伯利亚、阿富汗、伊拉克、伊朗、克什米尔以及中国大陆的**、青海、甘肃、经华北到东北的西南部等地，多生活于低山干燥山谷以及丘陵的岩坡和砂坡。该物种的模式产地在希腊。
英语百科
Chukar partridge 石鸡
The chukar partridge or chukar (Alectoris chukar) is a Eurasian upland gamebird in the pheasant family Phasianidae. It has been considered to form a superspecies complex along with the rock partridge, Philby's partridge and Przevalski's partridge and treated in the past as conspecific particularly with the first. This partridge has well marked black and white bars on the flanks and a black band running from the forehead across the eye and running down the head to form a necklace that encloses a white throat. The species has been introduced into many other places and feral populations have established themselves in parts of North America and New Zealand. This bird can be found in parts of Middle East.
- Bound tariff rates的意思
- bound task set的意思
- bound task set load module的意思
- bound term的意思
- bound their to的意思
- bound theorem的意思
- bound to的意思
- bound together with plastic, metal magnet material的意思
- Bound tubl的意思
- bound unit的意思
- Bound up的意思
- bound up in的意思
- bound upon的意思
- bound up with的意思
- boundure的意思
- boundures的意思
- bound variable的意思
- bound variables的意思
- bound variate的意思
- Bound vector的意思
- bound verse的意思
- bound violation的意思
- bound volume的意思
- bound vortex的意思
- bound vortex line的意思