难得

This is a life-time gorgeous chance.

这是一生难得的机会。

It's the chance of a lifetime.

这是一生难得的机会。

This is great chance in the lifetime....

这是一生难得的机会。

A:Well, I'd like to give it a shot.

我想报名试试，毕竟是难得的机会。

It is very precious to find like-minded people.

当你找到了一个志同道合的人，这是很难得的。

By the analysis of dive and horizontal plane nonlinear model, the catastrophe model on de dive plane is deduced, and catastrophe stability is analysized. In the horizontal plane, simplified equation is gained by center manifold theory, then draws the conclusion that the stability of limit circle arises from critical point is relate to small difference of move point and critical point.

通过对潜艇垂直面和水平面非线性运动模型进行分析，导出垂直面运动的突变控制模型，并进行了突变稳定性分析；在水平面运动的非线性分析中，通过中心流形定理简化方程，得出临界点处极限环的稳定性与微差占的符号有关的结论，这样在无法或很难得到李亚普诺夫函数的情况下，可以通过这种方法判别临界点的稳定性。

His chivalrous behavior was noted by Christian chroniclers, especially in the accounts of the siege of Kerak in Moab, and despite being the nemesis of the Crusaders he won the respect of many of them, including Richard the Lionheart; rather than becoming a hated figure in Europe, he became a celebrated example of the principles of chivalry, a rare distinction for a non-Christian.

他的侠义行为被基督教编年史家所记录，尤其是在对围攻摩押的卡拉克的记述中，而且尽管是十字军的克星，他仍然赢得了包括狮心王理查在内的多数十字军成员的尊敬；他成了骑士精神的一个著名楷模而非欧洲的反面人物，对于一个非基督徒来说是难得的荣誉。

They met Leonard the Llama who could quote Shakespeare flawlessly which is rare in a Llama.

他们见了驼谁能引用莎士比亚的伦纳德和维持这难得一驼。

Velvet gowns this design idea is a very careful, because both sides have long-staple, and the back and silk lining, not only has the appearance of legislation plexus villi, the thickness of the larger and the effect of soft and cotton clothing with is similar to the good thermal properties, very sophisticated, but also very practical, is known in the ancient countries in the same fabric seems to have been found, even if placed velvet fabric with a modern bar, no less briefly indeed rare products, worthy of "mechanism cloud steaming, almost won Tiangong" the reputation.

这件绒袍的设计思想是相当周密的，由于两面均有长绒，而背面又有绢衬，不仅具有绒毛丛立的外观，厚度较大和手感柔软的效果，而且具有与绵衣相似的良好保暖特性，非常精巧，也非常实用，在现知古代各国的同类织品中似乎还没有发现过，即使将其置于现代绒类织物同列中，也略无逊色，实为难得的产品，无愧于"机制云蒸，殆夺天工"之美誉。

Added Lordly status very rare chance for Steel Shield.

时间大帝地位非常难得的钢铁盾牌。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。