查询词典 cusp

Cusp-shaped trenching is China Agricultural University in the course of the study of conservation tillage in the introduction of screening test the Australian soil, and it has buried a strong ability to form a narrow groove (small amount of ground-breaking), ability to automatically back to earth, simple structure, reliable, low cost and so on.

尖角形开沟器是中国农业大学在保护性耕作研究过程中引进、试验筛选的澳大利亚开沟器，它具有入土能力强，沟形窄，自动回土能力强、结构简单、工作可靠，价格低廉等特点。

Based on the total potential energy principle, the cusp catastrophic model for instability and failure of deep-buried tunnel surrounding rock is established. Through the observed data of settlement values of typical section vault of deep-buried tunnel and the sudden threshold values of displacement of each monitoring section, the variable values of vault settlement function are obtained, and the stability of deep surrounding rock in tunnel is decided.

运用突变理论探讨了深埋隧道失稳的机制；根据总势能原理，建立了隧道失稳的尖点突变模型，导出了失稳的力学判据条件；并基于深埋隧道典型断面拱顶下沉量现场量测的数据，计算出拱顶下沉函数的各变量值，由各监测断面位移突变阀值来判别深埋隧道围岩的稳定性，分析结果与实际施工围岩情况一致。

The cusp is responsible for the famous auroras that grace high latitudes.

尖端结构是形成著名的极光的原因，而极光的出现让高纬度的地区更加明亮。

Through improving the geometric parameters of the cemented carbide bit such as the rake angle of main cutting edge,outer fringe cusp and chis...

通过对钻削加工用硬质合金钻头的几何参数进行改进，主要是对主切削刃前角、外缘转点以及横刃进行改进，达到降低钻削功率的目的，同时，利用多元线性回归理论，得出基于实验数据的多元回归钻削功率的数学模型，从理论上证明此次刀具改进的有效性。

Firstly, we study the theory and application of jump points and sharp cusp points detection by wavelet transform. The studied object is from white noise to correlated noise. We have studied the properties of correlated noise in wavelet transform, and the properties of deterministic function with jumps and sharp cusps in wavelet transform.

首先研究了研究了小波变换在突变点与尖点检测中的理论与应用，研究的对象由白噪到相关噪声，研究了相关噪声在小波变换的性质，以及对具有突变点和尖点的函数在小波变换下的性质，有关这些性质，我们均以定理形式给出，并给出了详细的证明。

Head-to cry as a result of chromosomal abnormalities, metabolic diseases, intrauterine infection, caused by factors such as intrauterine malnutrition, fetal pregnancy in 5 months, there has been slow brain development, and head circumference at birth is slightly smaller than the normal newborn, Before the chimney, or close to the closure of small, aging face and normal bone development on both sides of the frontal and temporal bone upward, flat occipital bone, the head of the Department appears to be even smaller than the head tip, it is also known as the cusp deformity.

小头啼形可因染色体异常、代谢性疾病、宫内感染、宫内营养不良等因素引起，胎儿在妊娠5个月时，脑发育已出现迟缓，出生时头围比正常新生儿略小，前囱小或接近关闭，随年龄增长面骨发育正常而额骨及两侧颞骨向上倾斜，枕骨平坦，头颅部显得更小，头顶较尖，故又称尖头畸形。

A cusp catastrophe model is presented to describe the behavior of sliding along one deep incompetent structural plane of a gravity dam foundation, and the sufficient conditions leading to instability are discussed. It is found that the instability of sliding relies mainly on the stiffness ratio k, the homogeneity index of the medium m and the geometry-mechanic parameter ξ and that the reliability of the traditional limit analysis method is deficient.

通过建立的模型分析，发现坝基滑动失稳主要取决于软弱面上复杂弹脆性介质和应变软化介质在应变软化拐点处的刚度比k、材料的均匀性指标m及几何－力学参数ξ；并给出了发生突变失稳的充分力学判据，指出传统的刚体极限平衡分析法存在一定的缺陷。

In 1929, we were on the cusp of the golden age of Zeppelins.

1929年是齐柏林飞艇的黄金时代。

He hasn't wanked this much since he was 16 and surrounded by a school full of other teenagers, including dozens of fit young men poised on the cusp of adulthood.

自从他十六岁之后，他已经很久没手淫得这么厉害过了，那时他周围都满是学校里的少男少女，不少都处于少年和成人的交界点。

Seed scales 1.3-1.5 × 1.4-1.8 cm; bracts oblong-spatulate, apical cusp 3-5 mm

种鳞 1.3-1.5 * 1.4-1.8 厘米；苞片长圆形匙形，顶端尖突毫米 11 Abies delavayi 苍山冷杉

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％。