threshold

英 [ˈθreʃhəʊld]

美 [ˈθreʃhoʊld]

n.  门槛; 门口; 阈; 界; 起始点; 开端; 起点; 入门

复数：thresholds　

CET6考研TOEFLIELTSTEM8计算机

Collins.2 / BNC.4990 / COCA.4724

牛津词典

noun

• 门槛；门口
  the floor or ground at the bottom of a doorway , considered as the entrance to a building or room
  1. She stood hesitating on the threshold.
     她站在门口，犹豫不决。
  2. He stepped across the threshold.
     他迈过门槛。
• 阈；界；起始点
  the level at which sth starts to happen or have an effect
  1. He has a low boredom threshold (= he gets bored easily) .
     他极易感到乏味。
  2. I have a high pain threshold (= I can suffer a lot of pain before I start to react) .
     我的痛阈很高。
  3. My earnings are just above the tax threshold (= more than the amount at which you start paying tax) .
     我的收入刚刚超过征税起点。
• 开端；起点；入门
  the point just before a new situation, period of life, etc. begins
  1. She felt as though she was on the threshold of a new life.
     她觉得好像就要开始新生活了。

柯林斯词典

• N-COUNT 门槛;门口
  Thethresholdof a building or room is the floor in the doorway, or the doorway itself.
  1. He stopped at the threshold of the bedroom...
     他在卧室门口停住了。
  2. The bride was carried over the threshold.
     新娘被抱进了家门。
• N-COUNT (某事发生或改变的)界限，阈，起始点
  Athresholdis an amount, level, or limit on a scale. When thethresholdis reached, something else happens or changes.
  1. She has a low threshold of boredom and needs the constant stimulation of physical activity...
     她容易厌倦，需要时常进行活动来刺激一下。
  2. The consensus has clearly shifted in favour of raising the nuclear threshold...
     显然大家已普遍开始转向支持提高核武器使用的门槛了。
  3. Fewer than forty per cent voted — the threshold for results to be valid.
     投票的人不到 40%——投票结果无效。
• PHRASE 在…开端;将要经历;面临着
  If you areon the threshold ofsomething exciting or new, you are about to experience it.
  1. We are on the threshold of a new era in astronomy.
     我们很快就将迎来天文学的新纪元。
  2. ...a lovely girl on the threshold of growing up.
     眼看就要长大成人的可爱女孩

英英释义

noun

• the sill of a door
  Synonym:doorsilldoorstep
• the entrance (the space in a wall) through which you enter or leave a room or building
  1. he stuck his head in the doorway
  Synonym:doorwaydoorroom access
• the smallest detectable sensation
  Synonym:limen
• a region marking a boundary
  Synonym:brinkverge
• the starting point for a new state or experience
  1. on the threshold of manhood

双语例句

• Of particular note is the deviation threshold parameter and the dimensional shift parameters.
  需要特别注意的是偏差阈值参数和空间移位参数。
• An image denoising scheme based on wavelet packet and level dependent adaptive threshold is proposed in this paper.
  提出了一种基于图像小波包变换及与分解层次相关的自适应阈值的去噪方法。
• She has a low threshold of boredom and needs the constant stimulation of physical activity
  她容易厌倦，需要时常进行活动来刺激一下。
• We have now reached the threshold of civilization.
  这样，我们就走到文明时代的门槛了。
• This article has introduced an improved algorithm variable difference threshold value which is based on gradient.
  文章介绍了一种改进的基于斜率的可变差分阈值算法。
• This can be useful when the correct adjustment cannot be carried out through amplitude, threshold and phase adjustment.
  通过振幅，开端和相位调整，当正确的调整不能被执行时，这个能有用。
• The effects of external cavity feedback on the threshold gain and emission linewidth are discussed theoretically;
  理论上分析了外腔的引入对激光器的阈值增益和光谱线宽的影响；
• To cross the threshold is not difficult, but mastery is another question.
  入门不难，深造不易。
• We are on the threshold of a new era in astronomy.
  我们很快就将迎来天文学的新纪元。
• Fewer than forty per cent voted — the threshold for results to be valid.
  投票的人不到40%——投票结果无效。