底角

In fact, a triangle formed for example, by the northern halves of two meridians and the section of the equator between them, will have two right angles at its base and an arbitrary angle at the top-a sum clearly greater than two right angles.

实际上，比如说，一个由北半球的两条子午线和它们之间的部分赤道组合成的三角形，将有两个直角作为底角，还有一个为任意角度的顶角-很显然它的内角之和比两个直角和要大。

Based on the full-width at half-maximum of optical pulse,one can estimate the radius of incident beams and Fresnel biprism's base angle.

根据所测飞秒脉冲的半高全宽，可估算所需光斑大小和菲涅尔双棱镜底角，为菲涅尔双棱镜的选择提供了理论依据。

Meanwhile,the relation among Fresnel biprism's base angle,refractive index,and the radius of incident femtosecond pulse beam was obtained.

基于单发频率分辨光学开关法的飞秒脉冲测量系统，理论推导光束经菲涅尔双棱镜分光与聚合产生的时间延迟，得到菲涅尔双棱镜底角、折射率和脉冲光斑半径的关系。

The epidemiologic triangle consists of three components, with the Host at the top point and the Agent and the Environment at the other two points of an equilateral triangle.

流行病三角形由三部分组成，包括在等边三角形顶端的宿主，和在两个底角处的病原和环境。

Or, spin away from an oncoming double with a fadeaway shot.

像马刺这样的球队致命的，因为她们有邓肯这样的稳定球员，除了他的两双之外，还有吉诺比利的空切，帕克的突破，鲍文的底角三分。。。。。。

First, using idea and means of optimize design , I optimize main parameter of steering echelon and steering linage machine .

在此基础上，首先利用优化设计的思想和方法对转向梯形，转向连杆机构的主要参数(转向梯形机构的主要参数为梯形底角和梯形臂长；纵向传动机构的传动比)进行优化设计。

For Bryant's piece de resistance, as the teams traded baskets down the stretch, he jumped through a double-team, found himself up in the air with nothing to do, banked the ball off the backboard back to himself and dunked.

科比最拿手的，就是当球队把球传给底角的他时，他从两个防守队员中间直杀篮下，然后一个拉杆扣篮。

The result indicates that the hearing capacity of rails have heen improved highly. The effect of normalizing treatment on railhead and rail bottom angle is more excellent than manually operatinn.

结果分析表明：钢轨接头经数控正火后，静弯承载能力明显提高，轨头和轨底角区域正火效果理想，正火质量优于手动正火。

The experiments and simulations are performed by using a conical lens whose radius is 15 mm and basic angle is 1°. The experimental results are compared with the theoretical analysis and computer simulation results. The comparison indicates that the influence of eccentricity on the diffraction mode decreases as the radius of curvature of incidental spherical wave and the propagation distance decrease.

使用半径为15mm，底角为1°的圆锥透镜进行计算机仿真和实验，最后将实验结果与理论分析和仿真结果相比较，证明球面波的曲率半径和出射光束的传输距离越小，偏轴对衍射模式的影响越小。

In responding to the problems identified, a countermeasure of bolt-mesh-anchor-shotcrete + floor-bolt + truss coupling supporting is proposed, namely using shotcrete to seal surrounding rock, bolt-mesh support to release deformation energy, floor bolt to transfer floor heave plastic slippage force, anchor-truss support to control the deformation of surrounding rock. Therefore, the effective deformation control of deep high stressed soft rock roadway can be achieved.

为此，提出了锚网喷＋锚索＋底角锚杆＋桁架耦合支护对策，即通过喷层封闭围岩，锚网柔性支护释放变形能，底角锚杆转移底臌塑性滑移作用力，锚索＋桁架支护控制围岩整体变形，从而实现对高应力巷道围岩变形的有效控制。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷