不常的

Considering a predator-prey system with a kind functional reaction in which the predator species have no density restriction,no fishing,while the prey species have nonlinear density restriction and the constant invest.

考虑捕食者无密度制约、无捕捞，而食饵具有非线性密度制约和常投放率的一类功能性反应的食饵捕食系统，对其进行了定性分析，证明了在不稳定的正平衡点附近存在唯一的极限环。

So variable but real the fate is.

看那些匆匆的人流，携带著大包小包，奔向一个个或熟悉或未知的远方，我站在那里常有一种说不出的感动，生活是这样的热烈而匆忙，命运是这样多变而真实。

Surcharging is one of the exsiting ground improvement techniques. It could be used to reduce long term settlement and also used to increase soil strength. But the rebound and recompression properties after surcharge removal are not well established.

超载工法为众多地盘改良工法之一，常被用来改良软弱土壤，不仅可增加土壤的强度，并可避免建物完成后因不均匀的沉陷而衍生问题，但是对於地盘受超载改良后的回胀与再压缩性质一直无法确实的了解。

I often think, this generation of young people, Han or Tibetan, is completely different from before.

我常想，这一代的年轻人，不管是汉族的，还是藏族的，和以前是完全不一样的。

The eaves are dripping on the south side of this simple roof, while the titmouse lisps in the pine and the genial warmth of the sun around the door is somewhat kind and human.

只是这种声音不常听见了，由于它的衬托，这里的风景显得更加萧瑟，世界上所有的力量，似乎都在努力把这种声音变成自然界的一部分

Mr. Reed had been dead nine years: it was in this chamber he breathed his last; here he lay in state; hence his coffin was borne by the undertaker's men; and, since that day, a sense of dreary consecration had guarded it from frequent intrusion.

里德先生死去已经九年了，他就是在这间房子里咽气的，他的遗体在这里让人瞻仰，他的棺材由殡葬工人从这里抬走。从此之后，这里便始终弥漫着一种阴森森的祭奠氛围，所以不常有人闯进来。

Against this sense of temporary existence spirit offers you the knowledge of permanence and unshakeable being.

灵性所带给你的是对恒常的真知以及屹立不摇的实存，与上述的暂存感正好相反。

Be reminded that some non-typical flu-like symptoms, such as short-term Toutongnaore, pharyngodynia, and so on, they often have one of the emerging, in order to prevent cross-infection, no recommendations were based on the disease to hospital should be minimal, with Resistance from their own governance.

值得提醒的是，一些不典型的感冒症状，像短暂的头痛脑热、咽痛等等，它们常一过性出现，为防止交叉感染，建议没有基础疾病的人应尽量少去医院就诊，用自身抵抗力来自治。

To express certain emotions, especially mirth, delight, or derision, by a series of spontaneous, usually unarticulated sounds often accompanied by corresponding facial and bodily movements.

笑：为表达某种情感，尤指高兴、快乐或嘲笑而发的一阵自发的，通常是不清晰的声音，并常伴随着脸部和身体的运动

Although classic neuroimaging features of RPLS with involvement of the posterior head regions are easily recognized, features that may generally be regarded as atypical were often present in our patients, such as significant anterior involvement, cortical lesions, recurrent RPLS episodes, foci of permanent injury, hemorrhage into lesions, and unilaterality (Figure 1). High signal intensity on T2-weighted image lesions can occur in regions other than the parieto-occipital areas, frequently involving the frontal lobes, basal ganglia, thalami, or brainstem.

可逆性后部白质脑病综合征典型的神经影像学表现为大脑后部受累，尽管这一点很早就被公认；但可逆性后部白质脑病综合征不典型的神经影像学表现，在本文的患者中则更常见，如：大脑前部明显受累、皮层出现病灶、可逆性后部白质脑病综合征再次发作、脑永久性损伤灶形成、病灶内出血、仅见单侧病灶（图1）；T2像常可于额叶、基底节区、丘脑、脑干等顶-枕叶以外的区域见高信号病灶。

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。