查询词典 gradients

The results showed that the enhanced stirring action of the liquid metals in weld pool due to peak-current fluctuating periodically under single-wire synergic pulsed MIG welding decreased temperature gradients and increased heterogeneous nuclei within the region of constitutional supercool...

试验结果表明，单丝复合脉冲焊接时，峰值电流周期性变化引起的熔池液体强烈的搅拌作用，使熔池的温度梯度降低，固液界面前沿成分过冷区中的形核核心增加，促进了焊缝组织的细化，提高了焊缝的强度和塑性。

The results show that the tangential stress distribution is decided by pressure gradient, that is, the maximum tensile stress locates where maximum pressure gradient is, while the compressive stress locates where pressure gradients change their direction.

结果显示，轴瓦周向应力分布取决于油膜压力的梯度，最大拉应力位于压力梯度最大处，而周向压应力的峰值则位于压力梯度方向改变处。

The heat capacity of the cold and hot points of said thermopile together with its mounting and the heat conductivity of said mounting are co-ordinated with each other in such a way that a change in the temperature of the housing causes an equal change in the temperature of the cold and hot points, so that no temperature gradients occur inside the thermopile.

热电堆的冷端和热端及其支撑结构的热容量与支撑结构的热导率相互协调，以便壳体的温度变化引起冷端和热端同等幅度的温度变化。也就是说，所述热电堆中不存在温度梯度。

After studying this phenomenon, the author finds that, the covariance matrix of the complex expressions of horizontal gradients of the disturbing gravity field elements has a structure of blockwise repetitive Toeplitz matrix, though the covariance within the disturbing gravity field elements is still anisotropic. Therefore, the collocation problem of the complex combination of horizontal components is similar to that of gravity anomaly, which makes the degradation be able to be completed by FFT transformation matrix.

作者研究发现，利用水平梯度的复组合，即复数表示后，扰动重力场元复组合之间的协方差函数尽管还是各向异性，但它们对应的协方差矩阵却具有分块 Toeplitz 循环阵的结构，因而水平分量复组合的配置问题与重力异常的配置问题相似，可以利用傅立叶变换矩阵进行降阶处理。

Roots as material, a tight tonoplast preparation with high purity was isolated by differential centrifugation and sucrose density gradients centrifugation.

根为材料，采用差速离心和蔗糖密度梯度离心法分离纯化液泡膜。

OBJECTIVE:To study the toxicological and pharmacological actions of Yumasha-fen and its gradients.

目的：观察愈麻沙芬及其组份的毒理和药理作用。

Tall rescue and Trifolium repens were studied under condition of 4 different watering gradients.

在4种不同灌水梯度条件下，对高羊茅Festuca arundinacea和白三叶Tritolium repens两类不同草坪草的蒸散进行了研究，得出天津滨海地区草坪草的蒸散量变化规律。

The purpose of this dissertation is to study a principle or method to describe and analyze the complex problems with high gradients arising from practical engineering. The main contents cover:1. The Bezier function was introduced to approximate high gradient functions, and a suitable coupled function was derived. Some detail numerical results show that the Bezier-based function is dominant over other combination function such as polynominal and trigonometric series, when to describe a high gradient function.

针对工程中大量存在的高梯度问题进行函数逼近的研究，引入Bezier函数对高梯度问题进行函数逼近，构成以Bezier函数为主的复合逼近函数，数值考证表明：与常规多项式插值函数的逼近及"幂／三角"复合函数的逼近相比，基于Bezier函数的逼近函数对高梯度问题的描述具有明显优势。

Spatial distribution of the tropopause height: The strongest meridional gradients in the tropopause height are between 20°and 40°over both hemisphere.

1对流层顶高度的空间分布特征：在两半球的纬度20°到40°之间对流层顶高度的经向梯度最大。

Results: Substantial gradients of gentamicin along the length of the scala tympani were demonstrated and quantified, aeraging more than 4,000 times greater concentration at the base compared with the apex at the time of sampling.

结果：研究证明并定量了庆大霉素沿着鼓阶长度的实际浓度梯度，在同一时间获取的样本之中，耳蜗基底部庆大霉素的浓度平均较耳蜗顶部的要高出四千多倍。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。