通过以不同波长的光进行测试,研究小组发现,这些鱼的水平细胞在感光性方面比它们的“搭档”锥状细胞要弱上数千倍。
Testing light at different wavelengths, the team found that these fish horizontal cells are thousands of times less light sensitive than their partner cone cells.
不过,科学家们认为,尽管沙锥齿鲨锋牙利齿的外表很吓人,但它们实际上是性情温和的动物,只有被激怒时才会咬人。
Biologists from Macquarie University in Sydney insist that grey nurse sharks, while terrifyingly toothy in appearance, are mild creatures which will bite humans only if provoked.
与杆状和锥状细胞一样,神经节细胞也是在视网膜上发现的。
Like rods and cones, these ganglion cells are found in the retina.
使用3d印制机作为生产工具在工业上被称作“加法”制造(与传统的对金属进行裁剪、锥钻、击打的“减法”制造相反)。
Using 3d printers as production tools has become known in industry as "additive" manufacturing (as opposed to the old, "subtractive" business of cutting, drilling and bashing metal).
本文介绍一种在喇叭口径上具有幅度锥削的相位校正的E面扇形喇叭。
In this paper, an e-plane sectoral horn with amplitude taper and phase correction in the aperture is presented.
提出一种在转子上设置虚拟支承的方法,以保证弧齿锥齿轮的啮合稳定性,并采用传递矩阵法,建立了弧齿锥齿轮-转子系统的振动模型。
This paper presents a method of providing a virtual support for the rotor to assure the meshing stability of a pair of a pre determined spiral bevel gears in rotation.
有许多磁铁作为你看到桌子上的底部内锥。
There are as many magnets as you see on the table on the bottom inside of the cone.
如果应用于干燥固体颗粒、造纸原料、泥浆或压力超过所标注的限制值时,请参阅锥齿轮执行器网页上的相关信息。
Refer to information on bevel gear actuators for use on dry solids, paper stock, slurries or when pressure exceeds limits shown.
实际上,我会争辩高锥克山谷很有可能不在威尔士。
In fact, I would argue that it's highly UN-likely that Godric's Hollow is in Wales.
利用锥上的不动点定理得到了一个正解和两个正解的存在性。
Using cone fixed point theorem we get the existence of one and two positive solutions.
他还说,即使在法律上的人谁可能有一些盲人和视力恢复锥恢复。
He adds that even people who are legally blind might have some cones reactivated and vision restored.
利用锥上的度数理论获得了一个新的存在定理。
A new existence theorem is obtained by applying the degree theory on cone.
利用锥上的混合单调算子不动点定理,本文研究了一类四阶奇异非线性微分方程的边值问题,即一类弹性梁方程问题。
By using a fixed point theorem of mixed monotone operators in cone, this paper studied a fourth-order nonlinear singular boundary value problem, namely a class of elastic beam equation.
计算结果表明,该喷管出口锥与延伸锥结构是安全的,但考虑到材料性能的波动,安全余量较小,应从设计上保证产品的可靠性。
According to the computed result , the structure of NEEC is safe , but its safety margin is small, so the safety of the product should also be ensured through the design.
应用有限元方法对液压锥阀流场进行数值预报,分析其能量损失,噪声和流场结构的关系,并在此基础上对流道结构进行优化设计。
After calculating the flow field of the pyramidal, the relationship between energy loss, noise and the structure of the valve has been analyzed; the flow channel has been optimized.
利用锥上的不动点定理讨论了一阶脉冲微分方程周期边值问题的正解的存在性。
By using the fixed point theorem on cone, this paper studies the existence of positive solutions for first order periodic boundary value problem with impulses.
在上述研究的基础上,结合螺旋锥齿轮的精切齿原理及特点,探讨了脉冲电化学光整加工在螺旋锥齿轮上的应用模式。
It is discussed the application mode of PECF on the spiral bevel gear based on the research above and the principle and characteristic of precision cutting of spiral bevel gear.
运用计算流体力学(CFD)方法,对V锥流量计进行了数值模拟,得到了锥体上的压力和速度的详细分布情况,并对其进行了分析。
The detailed distribution of pressure and velocity on the cone obtained after simulating the flow characteristics of a V-cone flowmeter with the computational fluid dynamics (CFD) method is analysed.
在此基础上,结合实际对动锥失稳现象作了详细分析。
Based on this, instability of moving cone was analyzed on practice.
通过水压力脉动数据的FFT频谱分析,研究了直锥段和尾水管内部在不同位置不同工况下的压力脉动在时域及频域上的变化规律。
With the FFT analysis it is analyzed that the pressure surge changing laws in the taper pipe and draft tube in time domain and frequency domain.
蓝月亮表演场基础采用天然地基上扩展基础,屋盖采用正放四角锥双层非完整球面钢网壳。
BlueMoon Arena is built on spread foundation, and its roof is an incomplete right four angle pyramid double layer reticulated shell.
本文介绍了锥管螺纹丝锥在万工显示上的测量原理、计算公式及测量方法。
This paper introduces the measuring principle, calculating formula and measuring method of the taps for taper pipe threads through the universal tool microscope.
本文从理论上分析推导了3d锥束精确重建的完全条件,并结合一些具体的源点轨迹进行了讨论。
The completeness condition for 3d cone beam exact reconstruction is analysed and derived theoretically, and discussion about some source orbits follows.
在分析克林·贝格螺旋锥齿轮切齿原理和基本运动的基础上,以一对齿轮副参数为例进行建模。
Based on an analysis of gear cutting principle and basic motion of klingelnberg spiral bevel gear, the modeling is carried out by taking parameters of a gear pair as example.
本机组有液压,双锥放料,液压铲头引头,送料,校直,剪切,阻尼,收卷,上料,下料小车等主要部件组成。
The unit is composed of hydraulic and double conic placing, hydraulic spading and drawing, straightening, shearing, end stopping, coiling, feeding, dropping cart, ect.
该方程适用于滚子为柱型或锥型凸轮为槽定位或脊定位、单头或多头、左旋或右旋、上转或下转的情况。
The equations is used whether roller is column or cone, cam is in spine or groove location, left or right helical, single head or many heads and how it is turning.
本课题在进动啮合理论的基础上,研究了锥摆线齿轮的加工装置。
The processing device used in cone cycloid teeth cutting was studied on the base of studying the theory of nutation engagement.
键槽轮毂的锥孔应至少有70%的着色(表面接触)转移到锥度计上?
Tapered bores for keyed hubs shall have a minimum of 70% transfer of bluing (surface contact) to the taper gage.
键槽轮毂的锥孔应至少有70%的着色(表面接触)转移到锥度计上?
Tapered bores for keyed hubs shall have a minimum of 70% transfer of bluing (surface contact) to the taper gage.
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