查询词典 attenuate

Basal leaves rosulate, persistent; petiole to 6 cm; leaf blade oblong or oblong-spatulate, rarely linear-oblong,(0.3-)0.6-1.7(-1.9) cm × 1.5-4 mm, densely tomentose with 4-6-rayed stellate trichomes 1 or more rays of which forked or with a lateral branch on each side, base attenuate or cuneate, margin entire, apex obtuse. Cauline leaves absent or rarely 1, sessile; leaf blade oblong, tomentose as basal leaves, margin entire, apex obtuse.

基生叶莲座状，宿存；叶柄长达6厘米；叶片长圆形或长圆形匙形，很少线状长圆形，(0.3-)0.6-1.7(-1.9)厘米×-4毫米，密被绒毛具4-6伞辐星状毛1或更多伞辐那分叉或具侧枝在每边，茎生叶缺席的或很少1，无柄；叶片长圆形，象基生叶一样被绒毛，边缘全缘，先端钝。

The skyhook principle can be combined in this control rule, which can further attenuate the vibration of the car-body in lower frequency range, but the acceleration response in higher frequency range tend to be larger.

分析和仿真实验表明，半主动悬挂控制系统的时滞不影响系统的稳定性，但影响系统的响应性能；过大的系统时滞将使系统的响应加速度增大，平稳性变差，但不致使系统失稳。

Basal leaf blade ovate-cordate, ovate-reniform, or ovate-triangular, cordate or attenuate at base; petals white or green.

基生叶卵状心形，卵形，或卵形三角形，心形或渐狭在基部；花瓣白色或绿色。

Staminodes thin and long; basal leaf blade ovate-triangular, base attenuate; cauline leaf borne near base of stem, slightly smaller than or subequaling basal leaves; petals white

退化雄蕊薄和长；卵状三角形的基生叶，基部渐狭；忍受的茎生叶干，稍微小于或者近相等基生叶的近基部；花瓣白色 8 P。 humilis 矮小梅花草

Corolla yellow to deep orange, rarely bud purple-blue; leaf blade base attenuate to broadly cuneate; adaxial stamens adnate to corolla 2.5-4 mm above base, filaments glabrous to sparsely puberulent.

花冠黄到深的橙，很少芽紫色蓝色；叶片基部渐狭到宽楔形；正面的雄蕊贴生于花冠超过基础，对疏生微柔毛的花丝无毛2.5-4毫米。

KCG Cage Trim was developed not only to prevent cavitation but also to attenuate noise generated by high pressure drop gas and steam applications.

KCG笼式阀芯不仅可以防止气蚀，还可以减弱由高压降燃气和蒸汽产生的噪音。

Reduces the unwanted jitter, where the filtering of the loop is used to attenuate the unwanted side band energy which is the cause of the jitter.

减少不必要的跳动，在环的过滤用来变薄不必要的边乐团是跳动的因素能源的地方。

Presence of multiples leads to poor quality in main stages of offshore seismic data processing, such as velocity analysis, stacking and imaging. Three basic multiple attenuating methods are reviewed; and a more effective multiple attenuator is achieved by joining them. As the first step, shot or receiver records are extrapolated by wave-equation datum algorithms. The extrapolation will establish a model of waterbottom multiples. Waterbotton multiples will then be removed by subtracting the extrapolated records from the original records. After that, predictive deconvolution is used to attenuate the multiples created by source ghost. Finaly, RADON transformation is adopted to separate peg-leg multiples and residual water-bottom multiples from the original data in the τ-p domain.

地震勘探尤其是海上地震勘探中存在着各类多次波，由于多次波的存在严重影响了速度分析、叠加、偏移成像等地震资料处理，海上多次波主要有全程多次波和层间多次两大类，为了压制海上不同类型的多次波，本文首先分析波场外推、预测反褶积和拉东变换衰减不同多次波的理论基础，然后联合采用这些方法，分别衰减全程多次波和层间多次波；即：首先对炮记录或者接收点记录进行波场外推，建立海底多次波模型，预测并减去全程多次波，然后利用预测反褶积衰减掉周期性明显的多次波，最后将数据转换到τ-p 域，用拉冬变换根据同一时间多次波和有效波在速度等方面的差异，进一步分离层间多次波和剩余的全程多次波，并在该域中切除分离出的多次波，从而实现联合多次波衰减处理。

In this thesis, we proposed a robust trilateration method to estimate Path Loss Exponent which stands for the signal attenuate rate for each reference node to target path by using two different frequency signals and the trilateration method. Then we used every PLE to calculate the corresponding distance and performed the trilateration positioning task using these distances. We also ran two simulations to evaluate our proposed method.

但另一方面，即使在同一空间中，却因为存在著许多变数而导致各个不同的路径都拥有自己的路径衰减指数，所以此篇论文我们提出先利用两个不同频率的讯号测得参考点到目标上的路径衰减指数后，再利用此数值做此路径的距离推导，最后再藉由三点定位法做出目标的定位。

The exciter coil produces a magnetic field which creates eddy currents in the casing that attenuate and shift the phase of the magnetic field recorded on the pickup coil to show wall thickness and splits.

在涡流作用下，供耦合线圈记录的磁场发生相位衰减和偏移，从而指示套管壁厚和裂缝。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。