耳石的

However, perfect agreement of ages between structures (i.e., scales and otoliths) did not occur. Crappie length at age should be back-calculated using otoliths when more precise age estimates are needed and with scales when fish are too few to be killed.

因此，对于逆推计算的研究，没有确定耳石和鳞片哪个是完美的，但是在较少的样本的前提下，用耳石来对灰刺盖鱼的体长与年龄比鳞片精确一些。

By means of the frequency analysis, the characteristic dynamic response for short and long times were given, respectively, and proved that the otolith sys- tem was a second-order forced damping system with mass, dashpot, and spring.

通过对于系统频率特性的分析，分别得到了耳石层在初始阶段以及最终阶段的系统特征频率响应参数，并证明了耳石系统是一个由内淋巴液和胶质层共同作用的二阶受迫振荡动力学系统。

Considering the gel layer and the endolymph of otolith organs as visco-elastic solid and fluid respectively, the Grant′s elastic model was modified.

将耳石器官的胶质层和内淋巴液分别作为粘弹性固体和流体处理，修改了Grant等人所提出的模型，通过频率分析，给出了耳石器官物性参数以及粘弹特性对于系统的不同控制作用。

As the main influence of weightlessness in space focused on the otolith receptors.The test of otolith function is of great importance.

航天初期发生的空间运动病与人的前庭功能有关，航天产生的微重力主要影响耳石感受器，因此对耳石功能的检测有重要意义。

The thesis develop the otolith detection software, which fulfill One-dimensional method, and compare the detect effect before and after optimized.

变形模版法的主要理论依据是耳石新的轮纹状是在原先轮纹的基础上形成的，因此它们的形状具有一定的相似性，以耳石图像的外缘作为

Japanese eel, Anguilla japonica, is a catadromous fish, that spawned in the sea and migrating between sea- and freshwater. Otolith strontium / calcium ratio has been widely used for recording the migratory history of fish, but the interactive relationship between otolith Sr /Ca ratio and environment factors remained unclear.

鳗鱼为降海洄游型鱼类，一生当中会在淡水与海水之间洄游，近年来有相当多的研究利用其耳石锶钙比来回推鳗鱼洄游环境的历史，因此，本研究期由实验室的控制实验，验证盐度与饵料对鱼体组织锶钙比、耳石锶钙比及分配系数的影响。

Results In adult homing pigeons, the contents of ferromagnetic elements in lagenal otoliths were less than 0.7% and were the same order in magnitude as those in saccular and utricular otoliths.

结果 成年信鸽瓶状囊耳石中磁性元素Fe、Co、Ni的含量不足Ca元素的0.7％，与球囊和椭圆囊耳石中的含量为同一数量级。

The present study found that the contents of ferromagnetic elements in lagenal otoliths of adult homing pigeons were less than 0.7% and were the same order in magnitude as those in saccular and utricular otoliths.

本研究的结果发现：成年信鸽瓶状囊耳石中铁磁性元素Fe、Co、Ni的含量不足Ca元素的0.7%，与球囊和椭圆囊耳石中的含量为同一数量级。

The population of crucian carp in Honghu Lake had relatively complex age-structure with eight age classes and the individuals older than three-year-old accounted for about 25%.

不同龄组耳石重量有显著差异，分析耳石重量可作为验证年龄鉴定准确性的辅助手段，特别在判别大小相似个体的年龄时，作用更为明显。

State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, ChinaStrontium and barium in otoliths are mainly from ambient water where fish survives.

鱼耳石中元素锶和钡主要来源于鱼类生存的水体，这两种元素通过腮或肠进入内耳淋巴液，继而以类质同象的方式沉淀在耳石晶格内部空位和晶格间隙中。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐