平角

When Horizontal braces were set in the roof-truss, that could make more capacity effectively, and angle brace too.

另外，屋架中在加设平角撑或斜角撑时，皆能有效的帮助屋架来抵抗各种载重能力。

Angles larger than a right angle but smaller than a straight angle are called obtuse angles.

比直角大、但比平角小的角称为钝角。

"Mathematics on the corner there is an obtuse, straight angle, acute angle, right angle, the students, what angle ah?"

"数学上的角有钝角，平角，锐角，直角，同学们，还有什么角啊？"

The central studied content is: the studying for the C and R in the distance measurement, the study for standard deviation of distance measurement of the total station instrument, the study and calculation of illustration for the formula of periodic error of the total station instrument, the checking of horizontal angle.

主要的研究内容有：全站仪测距加乘常数的分析，全站仪测距标准偏差的研究，全站仪周期误差公式的分析及其实例计算，全站仪水平角的检定(多齿分度台法和多目标平行光管法)，一测回水平方向标准偏差计算公式的分析，一测回竖直角标准偏差的合理性分析及其实例计算。

Determination of the horizontal angle of the triangle vertices and, based on the starting side length, azimuth, the starting point coordinates using the sine law to inquire the location of the vertex plane triangulation measurement method is called, the control points, known as the triangle point, this control network known as triangulation.

测定各三角形顶点的水平角，并根据起始边长、方位角、起始点坐标利用正弦定律来推求各顶点平面位置的测量方法称为三角测量，这种控制点称为三角点，此控制网称为三角网。

Matrix stochastic processes are employed to model the characteristics of short range wireless propagation channels in the current research.

使用矩阵随机过程对短程无线信道的空时特性进行研究。以随机矩阵的列向量描述信道的仰角自由度，行向量描述信道的水平角自由度。

Free Brownian bridge processes are used to model the propagation trajectories of MPCs in wireless channel,from which the conventional channel impulse response model and the model based on matrix stochastic processes ...

对无线信道的空时特性进行了仿真分析，仿真结果表明，自由布朗桥过程所描述的完全随机的约束环境中，多径分量的波达方向在仰角和水平角维度上显示出一定的局部偏好性。

Have the ability of oral arithmetic and be familiar with right angle and straight angle.

能有一定的口算能力，对直角、平角等比较熟悉。

A right angle is an angle of 90°,and a straight angle is one of 180°.

直角是90°角，平角是180°角。

Angles larger than a straight angle but less than 360 degrees are called reflex angles.

大於平角、但不到 360 度的角称为优角。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。