查询词典 twenty-first

During the past twenty years Listeria monocytogenes has emerged as one of the most intensely studied bacterial pathogens.

在过去20 年monocytogenes李斯特菌属期间已经作为最强烈研究的细菌的病原体之一出现。

But I put aside twenty-five or fifty cents when I could afford it for my lithe girls Christmas presents.

但我尽可能每个月存25或50美分以备给小女儿买圣诞礼物。

But I put aside twenty-five or fifty cents when I could afford it for my lithe girl's Christmas presents.

但我尽可能每个月存25或50美分以备给小女儿买圣诞礼物。

Of themillions who saw Haley's comet in 1986, how many people will livelong enough to see it return in the twenty-firstcentury.

2.1986年看见哈雷慧星的千百万人当中，有多少人能够长寿到足以目睹它在二十一世纪的回归呢？

Abstract］ objective to study the knowledge of the imaging manifestation of x-ray and ct in peripheral small lung cancer.methods to collect twenty cases with no symptom in early time diagnosed by clinic and to retrospectively analyze their imaging features.results x-ray appeared patch,small node.ct appeared patch,small node,light lobulation,peripheral vessel convergence,pleural indentation sign.most of the diameter was 1.5 to 2 cm,with no mediastinum and pulmonary hilar lymph nodes diversion.furthermore the clinical symptom was not obviously.conclusion to be familiar and handling the sign mentioned above is the key to boost the diagnosis of small peripheral lung cancer.

目的 探讨周围型小肺癌的x线、ct影像学表现。方法收集临床和病理证实的早期无症状肺癌20例，对其影像学进行回顾分析。结果本组早期肺癌x线为斑片状、小结节状。ct表现为斑片状、小结节状、轻度分叶状肿块，小毛刺、血管集束征、胸膜凹陷征，大多直径在1.5～2 cm。无纵隔淋巴及肺门转移，且临床症状不明显。结论熟悉并掌握上述征象是提高小肺癌早期诊断率的关键。

Methods: Twenty six advanced lung cancer patients were treated with RFA in local anaesthesia.

目的：探讨射频消融治疗晚期肺癌的临床疗效及安全性。

So I went back to the telephone directory and placed some twenty calls to as many locksmith shops.

于是我又回到电话号码簿上，先后给约莫20家锁匠铺去了电话。

As he exits Arizona State Penn after twenty-one long years, Wilson (Academy Award Nominee Robert Forster) has only one thing on the brain, leveling the score with career criminal, Mackey Willis (Academy Award Nominee Robert Loggia).

由于受美国亚利桑那州一直流传着的一种阴暗的因果报应观点的影响，有的人渐渐就会变得心术不正，这种影响就如同难以控制的病毒一般产生大范围的恶性影响。

Zeno's logical paradox of Achilles and the tortoise,articulated ab out 425 B.C.,could not be expressed in a mathe－matical formula for twenty-one centuries.

芝诺在公元前425年提出的关于阿基里斯和乌龟的悖论，在以后的21个世纪里一直未能用一个数学公式表示出来。

And that divide does exist today. My wife and I lectured about this looming danger twenty years ago.

这个差异的确存在，我和我的妻子20年前就对这个潜在的危险做过演讲。

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。