有二轴的

The methylene which formed in decarboxylation is covalently linked to the C-4 position in nicotinamide ring of 〓.

二个亚基沿R轴方向在s-loop区有较强的相互作用。

Inflorescences polygamous, axillary in distal leaves, paniculiform, fascicled from many spikes; flower clusters alternate, usually a simple dichasium with bisexual flower in middle and sterile female flowers laterally.

花序杂性，在远轴叶上腋生，圆锥花序状，很多穗状花序簇生；花穗互生，通常有一简单的二歧聚伞花序，中间为两性花和两侧为不育雌花。

It is proved by the analytical and numerical method that the modulus of the Z transform of a finite impulse response sequence has no extreme values at poles (with maximums along imaginary axis and no extreme values along real axis), and the negative second order derivative of the modulus normalized along frequency axis with respect to angular frequency has maximums at the poles.

根据实测瞬态电磁脉冲响应，较好地反演了导体球和导体长椭球的冲激响应，测得了它们的雷达截面和谐振频率。用解析与数值相结合的方法证明了有限冲激响应序列Z变换的模在极点无极值（沿虚轴有极大值，沿实轴无极值），而沿频率轴的归一化值对角频率的负二阶导数在极点有极大值。

At each penton, a hole (φ=20〓) can be seen connecting the inside and the outside of the capsid, and there is a hole (φ=12〓) at each hexton and the center of 2-fold axis, so there are 132 holes in total at the surface of CSBV.

应用冷冻电镜技术和计算机三维结构重构的方法，我们测定了CSBV核衣壳的三维结构，分辩率为25 〓，病毒的核衣壳是按T=1（P=3）的对称结构排列二十面体，病毒表面比较光滑，有12个五邻体、60个六邻体的结构，每个五邻体的中央有孔洞，六邻体的中央也有孔洞，另外在2次轴的位置上也有孔洞，这样病毒共有132个孔洞，五邻体的孔洞的直径为20 〓，而六邻体和二次轴的孔洞的直径月为12 〓。

Topics covered include, the properties of light and its interaction with mineral grains: reflection, refraction, polarisation, interference phenomena, extinction, colour and pleochroism. Refractometry inclusive isotropic, uniaxial and biaxial optics and the interpretation of interference figures. Transmitted light petrography in the identification and familiarisation with major rock forming minerals in grain mounts and thin section.

讲稿内容涉及到光学属性分析与矿物交叉面相互反应，具体内容有反射、折射、偏振、光干涉现象（包括等方性、单轴、二轴光学及干涉数据解释）、岩石记述学、矿物的光学属性鉴定等方面。

As a result, the two beams of light don't have Faraday nonreciprocal phase error.

仿真结果表明，交叉环有很低的轴向磁场灵敏度，与轴向磁场灵敏度为23.4/的普通环相比，其他参数相同、不对称度为1%的交叉二极子光纤环，轴向磁场灵敏度仅为0.23/。

The term z-map might be a little misleading to those who are not familiar to working in 3D space. In high school geometry class the concept of two-dimensional space: the x-axis represents horizontal space and the y-axis represents vertical space. Whenever you work in packages such as Painter, Photoshop, Commotion, Combustion or After Effects you are working solely in 2-dimensional space. When you work in 3D you have, in addition to the x- and y-axes, a z-axis, representing depth.

z-map这个称呼或许对那些不从事三维空间工作的人来说有一点误导的嫌疑，在高校的几何课里面，关于二维空间的概念，X轴代表着横向空间，而Y轴代表着纵向空间，无论何时你使用例如Painter， Photoshop， Commotion， Combustion 或After Effects这样的软件，你正工作在一个二维的空间，但是在三维空间工作时，除了X轴和Y周，你还要加上Z轴，它代表了深度的概念。

Hydraulic pressure part consists of cylinder body around having some axial direction cylinders, pole piston, matching stream canister and timing equipment. Pyramidal difference decelerate part is composed of twin inner bevel wheel with difference of 2-toothes, twin outer bevel wheel without tooth difference and skew shaft etc.

液压驱动部分由周围均布有若干轴向缸的缸体、柱塞、配流筒及调速装置等组成，减速部分由二齿差内锥齿轮副和零齿差外锥齿轮周向限制副及歪轴等组成。

The invention relates to a multi-axle heavy ground car chassis, comprising a cab, a first front drive axle, a second back drive axle and a third back drive axle which are fixedly connected on a crossbeam of the chassis, and fixedly connected cartwheels. The invention is characterized in that a turn-able bearing axle connected to a turning mechanism is fixed between the first front drive axle and the second back drive axle on the crossbeam.

本发明涉及一种多轴重型越野汽车底盘，包括驾驶室、固定连接在底盘大梁上的前驱动一轴和后驱动二、三轴及与其固定连接的车轮，其特征是：所述大梁上的前驱动一轴和后驱动二轴之间固定连接有可转向的承重轴，所述承重轴与转向机构连接。

The main products for a variety of claw-type couplings, flexible set-pin couplings, nylon-pin couplings, flange coupling, multiple-lengthening coupling, rigid couplings, the cross slider Shaft, Plum coupling, as well as by coupling a mechanical pump, swelling the production of 20 sets of several series, thousands of specifications.

主要产品为各种爪型联轴器、弹性套柱销联轴器、尼龙柱销联轴器、凸缘联轴器、多节式加长联轴器、刚性联轴器、十字滑块联轴器、梅花联轴器，以及各种泵用机械用联轴器等，生产的胀紧套有二十几个系列，上千种规格。

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