The disappearance of megafauna in America—mammoths, saber-toothed cats, giant sloths, among others—happened relatively soon after the arrival of human beings, about 13,000 years ago.
美洲巨型动物的消失——猛犸象、剑齿猫、巨型树懒等等——发生在人类出现后不久，大约在一万三千年前。
They prey mainly on sea lions, seals, and small toothed whales.
它们以海狮，海豹，小型齿鲸为食。
Use a wide-toothed comb rather than a brush to untangle hair.
使用宽齿的梳子来梳理头发。
The dredge has several hemispheric scoops in place of the toothed bar.
这种捞网用几个半球状的铲子代替了锯齿横杆。
The angled roofs result in a saw-toothed profile.
倾斜的屋顶形成了锯齿状的建筑轮廓。
Denticulate Describing a leaf margin that is finely toothed.
具细牙齿的：叶片的边缘有细密的锯齿。
The reliability design of toothed belts gearing was studied.
研究了齿带传动的可靠性设计方法。
The leaves are coarse and toothed, divided into 7 to 9 leaflets.
它的叶子是粗糙和有锯齿的，分为7至9个叶片。
It allowed you to protect your helpless offspring from sabre-toothed tigers.
它让你保护你那些无助的后代免遭剑齿虎的伤害。
The stability of saw-toothed thread implants is better than "V" thread.
锯齿型螺纹种植体的稳定性比三角型螺纹好。
He believes "a saw-toothed advance" will characterize a recovery this autumn.
他认为今年秋季的复苏将以“锯齿式前进”为特征。
Use reducer special for plastic extruder with alloy hard - toothed surface.
采用合金硬齿面塑料挤出机专用减速机。
Other toothed whales are the bottlenose, the beaked whale, and the white whale.
其它有齿鲸包括宽吻海豚、突吻鲸以及白鲸。
A row of swordlike fangs gave the Enchodus its nickname: saber-toothed herring.
一排剑般的尖牙赋予了矛齿鱼的绰号：剑齿鲱。
Jascha Franklin-Hodge, 29, greeted me with a friendly handshake and a gap-toothed grin.
29岁的杰西卡·富兰克林·霍奇友好地跟我握手，裂嘴一笑，迎接我。
A toothed rack was commonly adopted for the automatic screw thread rotational unloading.
自动旋转脱螺纹一般采用齿轮齿条机构或液压齿轮机构。
But these days we don't worry about saber-toothed tigers, and we do give a damn about our happiness.
这些日子我们不怎么关心剑齿虎，但是我们却的确在乎我们的快乐。
Holding steady: the wood or heathland ant holding a microchip in its toothed (serrated) mandibles.
夹稳：这只木蚁用锯齿状下颌夹着一个微芯片。
A saw consisting of a tough, fine - toothed blade stretched taut in a frame, used for cutting metal.
弓锯一种锯，由一条坚韧、利齿的锯条张紧在一个框架里构成，用于切割金属。
The TAB contains a toothed wheel which is driven at a high angular velocity by the impinging airstreams.
舵片上有一个带齿的轮，这个轮受到气流的冲击而高速转动。
There were some surprising results as well, with sweet-toothed Australia naming chocolate as its favourite food.
这项调查中也有意想不到的结果。好吃甜食的澳大利亚人认为巧克力才是他们最喜欢的食物。
The doffer is driven by an inverter and a synchronous toothed belt which permits stepless variations of the speed.
道夫采用变频电机，同步齿形带传动，实现无级调速。
The invention relates to a toothed roll barker used for log barking in paper-making and man-made board industries.
本发明涉及一种在造纸、人造板行业中用于原木剥皮的齿辊式剥皮机。
It is well known that modern aves lack dentition unlike their toothed ancestors of the Jurassic and cretaceous periods.
众所周知现代鸟类不长牙齿，而其侏罗纪和白垩纪的祖先则长有牙齿。
It is well known that modern Aves lack dentition, unlike their toothed ancestors of the Jurassic and cretaceous periods.
众所周知现代鸟类不长牙齿，而其侏罗纪和白垩纪的祖先则长有牙齿。
Roughly speaking, these animals filled the ecological niches now occupied by toothed cetaceans such as dolphins and killer whales.
粗略地讲，这些动物在生态系统中所占的位置现在被海豚和杀手鲸一类的齿鲸类占据。
A wire-toothed brush or a machine fitted with rows of wire teeth, used to disentangle fibers, as of wool, prior to spinning.
梳理机：一种钢丝齿的刷子或装有数排钢丝齿的机器，在纺纱前用于理清纤维，如羊毛纤维。
A wire-toothed brush or a machine fitted with rows of wire teeth, used to disentangle fibers, as of wool, prior to spinning.
梳理机：一种钢丝齿的刷子或装有数排钢丝齿的机器，在纺纱前用于理清纤维，如羊毛纤维。
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