有颌类包括硬骨鱼类以及软骨鱼类。
Gnathostomes include the bony Osteichthyes and the cartilaginous Chondrichthyes.
上颌的一个表皮硬骨，在前颌骨的后面。
A dermal bone of the upper jaw which lies posterior to the premaxillary.
因此我给你安上苛刻的名字，以夸示我的硬骨。
That is why I gave you hard names and boast of my boast of my callous strength.
其骨骼构造非常柔韧，因为他们没有硬骨，只有软骨。
Their skeletal structure is extremely flexible, as it is made of cartilaginous material rather than hard bone.
简要介绍了硬骨鱼类起源与早期演化研究的最新进展。
This paper introduces briefly the latest advances of the study on the origin and early evolution of bony fishes.
身披粗硬骨鳞、行动迟缓的方形尾巴鱼；在温暖的深海。
Sluggish square-tailed fish armored with tough bony scales; of deep warm waters.
硬骨的基质既含有蛋白质的胶原纤维，也含有矿物质沉积。
The matrix of bone contains both fibers of the protein collagen and mineral deposits.
硬骨的基质既含有蛋白质的胶原纤维，也含有矿物质沉积。
The matrix of bone contains both fibers of the protein collagen and mineral deposits .
公众也许是块硬骨头，但是你可以在你的同事那里获得尊重。
The general public may well be a tough sell, but you can find respect from your peers.
清洁牙齿的时候需要注意—要么有规律的给犬只硬骨头咀嚼，要么要手动去除齿斑菌。
Cleanliness of teeth requires a bit of attention - either give your dogs regular hard bones to chew or remove the plaque build up manually.
对每种细胞类型的超微结构特征作了详细描述，并与其他硬骨鱼的相应细胞作了比较讨论。
The ultra structure features of each cell type are described in detail, and discussed in comparison with the homologous cells described in other teleosts.
软骨鱼类(鲨鱼、鳐、银鲛)仅占有颌类物种数的2%，其余98%的有颌类都属于硬骨鱼类。
Chondrichthyes (sharks, rays and chimaeras) account for only 2% of gnathostome species, the Osteichthyes accounting for the other 98%.
一般是经由鳃呼吸。大部分硬骨鱼有鳔，这是源于消化管的憩室，司控制浮力或为辅助呼吸器官。
Fish generally respire through gills. most bony fish es have a swim bladder a gas-filled organ used to adjust swimming depth.
鲟鱼是硬骨鱼系中一类古老的类群，由于具有极高的营养价值而倍受人们的青睐，经济价值较高。
Acipenser is an old fish group in Osteichthyes because it finds favour in people 's eyes with high not only nutrition but economic value.
开发新的芯片市场当然不是件容易的事，手机业务尤其困难，可能会成为英特尔面前的一块硬骨头。
Of course, cracking new chip markets isn't easy, and the cell phone business may prove an especially tough nut for Intel.
在其坚毅的战士人格的熏陶下，当代作家继承了他鲜明的爱憎立场和为捍卫真理而献身的硬骨头精神。
Inspired by his strong personality, they have also inherited his distinctive attitudes towards love and hatred and his brave spirit of devoting his life to the defense of truth.
许多原始生物灭绝，鲨鱼和硬骨鱼成为水域的主人，四足动物最终进化成了恐龙和哺乳动物，征服了陆地。
Many primitive lineages went extinct as sharks and bony fish became masters of the waters and tetrapods, the four-legged animals that eventually evolved into dinosaurs and mammals, conquered the land.
紧急设计的魅力之一是有这样的认识：我们不能可靠地预测什么会变成硬骨头，但是我们应该对此保持警惕。
Part of the appeal of emergent design is the realization that we cannot reliably predict what is going to be tough, but we should keep a wary eye out for it.
虽然这样穷困，但我这副硬骨头始终不屈服，不向有钱的人低头，更不像别人认为女人的出路是找个有钱的丈夫。
Destitute as I am, I can bear my privation with great fortitude. I never yield, never bow to the rich, never think that a woman's way out is to marry a wealthy man.
现在，高中生普遍觉的语法是块“硬骨头”，大部分的语法教学方法采取的是填鸭式教学方法，效果却收效不大。
At present, however, high school students commonly feel English grammar hard to learn. They are fed up with the cramming method of teaching grammar, with which they cannot have a strong memory.
实际上，资深的开发人员在预测那样的“硬骨头”方面并不会做得更好。他们只是更相信，那个神秘的硬骨头最终会出现。
In fact, senior developers don't get that much better at predicting the hard stuff; they get better at guessing that mysterious hard stuff will eventually rear its head.
硬骨鱼系先前公认的硬骨鱼系的层级不是一个单源的群。它现在有专门的地位，包括像鱼一样的肉鳍次亚纲与条鳍次亚纲。
Osteichthyes the formerly recognized class Osteichthyes is not a monophyletic group. It now has the status of a vernacular to include the fish-like Sarcopterygii and the actinopterygians.
“我希望这样的记录能够延续下去，但是每支与博尔顿交战的队伍都知道，博尔顿是块硬骨头尔我们上场联赛没有能够取胜。”格兰特指出。
'I hope the statistic will continue but any team that plays Bolton knows it is a difficult game there and in the league we didn't win lately,' Grant pointed out.
“我希望这样的记录能够延续下去，但是每支与博尔顿交战的队伍都知道，博尔顿是块硬骨头尔我们上场联赛没有能够取胜。”格兰特指出。
'I hope the statistic will continue but any team that plays Bolton knows it is a difficult game there and in the league we didn't win lately,' Grant pointed out.
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