使稀疏

The rarefaction wave immediately behind shockwave decompressed the shattered rock and threw them along with jet current.

紧接着冲击波后面形成的稀疏波使压碎的岩石减压并随喷射流抛出。

If the step of the linear system question is not very high, direct solving method is better; if coefficient matrix of the linear system question is not regular and large-sparse matrix , direct solving method does not settle the storage question.

而在求解线性方程组的许多实际问题中，尤其在偏微分方程的差分方法与有限元方法求解问题之中，方程具有重要的特征，一是多为大型稀疏矩阵；二是满足一些条件如对称正定、对角占优等，这使迭代法得到广泛的应用。

THE success of Silvio Berlusconi's hair transplant, four years ago, relied on the fact that the septuagenarian prime minister had enough of a thatch on the back of his head to enable some of it to be transferred to his thinning top.

四年前，西尔维奥·贝鲁斯科尼的头发移植获得成功，这次成功靠的是这位古稀之年的意大利总理脑后的一块够浓密的头发，使之能移植到其稀疏的头顶上。

Particularly, the Givens transform can process the large sparse matrix effectively, so the network learning is effective and fast.

特别是Givens算法具有有效处理稀疏矩阵的能力，使网络的继续学习快速而且有效。

Furthermore, the SDP sparsity technique can greatly improve the efficiency of storage and computing.

根据OPF半定规划模型的特点，采用基于半定规划的稀疏技术，使存储效率和计算性能得以大幅度提高。

Thus, we can carries on the safe appraisal first according to strip belt law mining, if it cannot mine safely, then we considered the sparse fall of water presses and some other synthesis preventing and controlling water measure, so that we can guarante the mine pit safety in production.

因此，我们可以进行关于安全评价首先根据条形地带规律挖掘，如果不能煤矿安全，那么，我们考虑了稀疏秋天的水塑机以及其他一些综合预防和控制水措施，以使我们能够guarante煤矿坑安全生产。

The most common type of hair loss is androgenic alopecia which is a gradual thinning of hair, which culminates in hair loss.

最常见的脱发是&雄性秃&，它会使你的头发逐渐稀疏，并最终产生脱发。

The method is based on the fact that the poststack zero-offset seismic section in a local time window is consisted of some linear events. Using the sparseness discrete τ-p transform and prediction biconjugate gradient algorithm to extrapolate makes the empty traces in the space coordinate reconstruction.

该方法根据叠后零偏移距剖面，在局部时窗内可以看作是一系列线性同相轴的组合，使用稀疏离散τ-p和预条件双共轭梯度算法进行地震道外推，使空间方向的缺失道得到恢复。

Age might possibly have thrown its blighting frosts on his thin locks, but art had labored to conceal the ravages with the nicest care.

James Fenimore Cooper， The Pilot 暮年也许在他稀疏的头发上撒下了使万物凋萎的严霜，但他有煞费苦心地花了很大气力，来巧妙地掩饰岁月摧残的痕迹。

Some enhance efficiency will be good with enhance effect being not obvious.Under this condition,using gray scale bargraph transformation process makes coarctate gray scale distribution of original image sparse,and non-easy observed details clea...

对于这种情况就可以采用灰度直方图变换方法将原始图像密集的灰度分布变得比较稀疏，从而拉大图像的对比度并在视觉上达到明显增强的效果，使一些原本不易观察到的细节能变得清晰可辨。

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％。