方位

For wurtzite-type crystal, [Zn-S4]6- and [Zn-S4]6+ with different crystal positions distribute in the form of layers along c axis, where the two layers of tetrahedrons whirl 60 around c axis, so the crystal is mainly like hexagonal cone.

在纤锌矿型晶体中，[Zn-S_4]~(6-)和[Cd-S_4]~(6-)四面体沿c轴呈层状分布，上下两层四面体的结晶方位不同，两层四面体绕c轴旋转60°，晶体的结晶形貌为六方锥状。

We assume that changes of azimuth antenna pointing between subswaths are small enough to guarantee that DC changes much tinier than PRF diversity.

算法假设子带间的方位向天线指向变化足够小，以致由此导致的多普勒中心的变化远小于PRF的差异，从而可以近似认为多普勒中心是随距离连续变化的。

Designed air drill air drill depth of 80-100 meters in diameter 90-150mm, with the impactor matching can be horizontal, vertical, tilt and other parties bit rock blasting.

设计钻空深度80-100米钻空直径90-150mm，与冲击器配套后，可以进行水平、垂直、倾斜等各方位凿岩爆破。

The function of Angle Calibration System is calibrating the antenna array , circuit attenuation and the angle of RF target.

而角度校准系统主要用于校准射频系统的天线阵列、通路损耗及射频目标运动的方位角和俯仰角。

The analysis on the numerical simulation results of the azimuth characteristics of the acoustic field generated by the transmitter showed that the acoustic energy generated by the phased arc array transmitter could radiate onto the sidewall of oil well in a certain azimuth range.

对模拟声场的方位特征进行的分析表明：相控圆弧阵声波辐射器产生的声波能量基本向某一周向角范围的井壁入射，进入地层的声波在一定周向角范围内传播。

The acoustic phased arc array transmitter can be used in azimuthal acoustic reflection logging. It evaluates the azimuthal variation of borehole formation acoustic properties, which is useful for complex reservoir recognition and evaluation.

这种相控圆弧阵声波辐射器用于方位反射声波测井新技术中，可评价井旁地层声学性质沿井周方向的变化，有助于复杂油气藏的识别和评价。

The acoustic phased arc array transmitter can be used in azimuth acoustic reflection logging and evaluate the azimuth variation of acoustic properties in the borehole formation and also be useful for complex reservoir recognition and evaluation.

这种相控圆弧阵声波辐射器可用于方位反射声波测井新技术中，能评价井旁地层声学性质沿井周方向的变化，有助于复杂油气藏的识别和评价。

The numerical simultion results were analyzed on azimuthal characteristic of acosutic field. The analysis results show that the acoustic energy generated by the phased arc array transmitter radiates onto sidewall in certain azimuthal range.

对模拟声场的方位特征进行的分析表明：相控圆弧阵声波辐射器产生的声波能量基本向某一周向角范围的井壁入射；进入地层的声波在一定周向角范围内传播。

A kind of acoustic phased arc array transmitter was designed for azimuthal radiation. 3D Finite difference method was used to calculate acoustic field in borehole formation generated by the acoustic phased arc array transmitter in fluid-filled borehole.

设计一种具有方位辐射特性的声波测井相控圆弧阵声波辐射器，采用三维有限差分法对其在井旁地层中产生的声场进行了数值模拟。

The arc array transmitter is composed of many ceramic flexural vibrators which are arranged in an annulus. Directional radiation is realized by controlling the vibrating phase of each vibrator.

声波测井圆弧阵发射换能器由多个压电振子沿着圆周排列，通过控制各个振子的激励时间可以实现向某个方位方向的声波辐射。

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％。