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汉语拼音：jiān duān

1.尖锐的末梢；顶点。

2.发展水平最高的（科学技术等）：～科学。～技术。～产品。

1. 尖锐东西的末梢、顶点。引申为高级的、特出的。亦指高级的、特出的事物。

   马南邨 《燕山夜话·植物中的钢铁》：“将来尖端科学发展的结果，人们总有一天要大量用塑料来代替钢铁。” 蒋子龙 《机电局长的一天》：“攻不下尖端，拿不出国家急需的产品，这不跟在战争中打了败仗一样吗？” 秦牧 《掌握语言艺术，搞好文学创作》：“文学是语言艺术，诗尤其是语言艺术的尖端，诗而无语言艺术的魅力，岂不糟糕！”

• What we are planning is cutting-edge technology never seen in Australia before.

  我们正在开发的是一种在澳大利亚从未有过的尖端技术。

• Nails are thin horny growths at the ends of the fingers.

  指甲是生长在手指头尖端的细薄角质物.

• This building is abreast with the tip of the island.

  这幢建筑物与该岛的尖端齐头.

• The airplane has a sophisticated electronic guidance system.

  这架飞机有一套尖端的电子导航系统.

• The tip can be ground to a much sharper edge to cut smoother and faster.

  可以把尖端磨得更锋利些，这样切割起来更顺更快。

• This building is abreast of the tip of the island.

  这幢建筑物与该岛的尖端齐头。

• The minority of us are confronted with difficulty in the frontier of the major.

  我们少数人在该专业尖端领域面临困难。

• Only the tip of an iceberg pokes up above water.

  只有冰山的尖端突出于水面.

• Note that these contours do not encompass the crack tip.

  注意这些围道,都不包含裂信尖端.

• All holes were positioned at the tip of the crack.

  所有的铝孔都位于裂纹的尖端.

• In this development only a single crack tip has been considered.

  在这个研究中只是考虑了单个裂纹尖端.

• California is on the cutting edge of trends that spread nationwide.

  加州走在全国流行的尖端.

• These tests require an extremely sophisticated instrumental effort.

  这些试验需要极其尖端仪器才能办到.

• We write with the tip of a pencil.

  我们用铅笔的尖端写字.

• The most sophisticated technique is scintillation spectrometry.

  闪烁计数测量法是一顶尖端技术.