The sounds bounce off them and the lower jaw captures the returning sounds, making it possible for the dolphin to sense what's in the surrounding water and decide where to swim.
声音从它们那里折射，下颌捕捉到返回的声音，使海豚能够感受到周围水域中有什么，并决定游向哪里。
This 3-foot-long croc was a plant - and grub-eater with a pair of buckteeth in the lower jaw it used to dig for food.
这种3英尺长的鳄鱼以植物和幼虫为食，它下颚上长着一对龅牙用来挖掘食物。
This tooth on the lower jaw is sensitive to cold and hot.
下颚上的这颗牙齿对冷热很敏感。
This tooth on the lower jaw is sensitive to cold and hot.
下腭上的这颗牙齿对冷热很敏感。
Meanwhile, the lower jaw shrunk in both length and height.
同时，下颌骨在长度和高度上都会收缩。
This tooth on the lower jaw is sensitive to heat and cold.
下颚的这颗牙齿对冷热很敏感。
Simply speaking there are normally 20 teeth in the upper jaw and 22 in the lower jaw.
简单来说，通常上颚部分有20颗牙齿，下颚部分有22颗牙齿。
Jaws must be undershot. The incisors of the lower jaw should protrude over the upper incisors.
咬合必须是下颌突出式咬合，就是说，下颌的门牙必须比上颌的门牙向前突出一些。
The venom (a neurotoxin) is conducted along grooves in the teeth from glands in the lower jaw. Bites are rarely fatal to humans.
多数牙上有两道沟槽，以便引出下颚的毒腺的分泌物，内含神经毒素，但很少能致人死亡。
Objective:To observe the blood supplies system of the lower jaw bone and provide anatomical basis for clinical surgery of mandible.
目的：研究下颌骨的血供，为有关下颌骨的外科临床提供解剖学基础。
Its upper and lower ends are quite constant. It is suitable for the extensive defect of the lower jaw skin, hemi-facial skin and so on.
故此皮瓣具有上述两皮瓣的特点，皮瓣上、下两蒂十分恒定，适用于下颌部皮肤的大面积缺损及半侧面部皮肤大面积缺损的修复等。
Unfortunately, the fourth premolar in the upper jaw is quite large and looks like the first molar in the lower jaw; it is known as a carnassial tooth.
不幸的是，上颚的第四颗前臼齿很大，看起来就象是下颚的第一颗臼齿，这颗前臼齿也被称作叫裂齿。
Laser-welded keeper just could be used when there was enough space between the upper jaw and the lower jaw in patients with limited space to design the cast-keepers.
激光焊接式衔铁适用于颌间距离较为充裕的患者，当颌间距离较小时则可选择铸造式衔铁。
Objective to find a new and practical approach of full maxillectomy by the path along lower lip and the lower jaw according to the anatomic characteristics of maxilla.
目的根据上颌骨解剖学的特点，探讨经下唇、颌下入路行上颌骨切除术的方法及优势。
下巴是可以活动的。
The lower jaw should be parallel to the floor.
下颚应该与地板平行。
The lower jaw can rotate as the fixpoint is condyle.
下颌能做以髁状突为定点的转动。
The lower jaw is broad enough for the lower teeth to be straight and even.
下颌宽阔，足够排列所有的下部牙齿。
The lower jaw is broad enough for the lower teeth to be straight and even.
下颌宽阔，足够排列所有的下部牙齿。
应用推荐