The calotype was revolutionary in its use of chemically treated paper in which areas hit by light became dark in tone, producing a negative image.
卡罗摄影法对化学处理纸的使用是革命性的，其中光照区域色调变暗，形成负像。
The word “dissatisfaction” has a very negative tone, but I would like to point out that dissatisfaction does not necessarily create unhappiness.
“不满”一词带有非常消极的语气，但我要指出的是，“不满”和“不快乐”没有必然的联系。
Some gestures project a very positive message, while others do nothing but set a negative tone.
有些姿势是非常积极的信息，另外的什么也不干却树立了消极的音调。
Sentiment analysis is a branch of natural language processing (NLP) that seeks to quantify positive vs negative perceptions; akin to "tone" analysis.
情绪分析是自然语言处理的一个分支(NLP)，旨在量化积极和消极感知力；类似于“音调”分析。
Another study shows that being deprived of sleep leads people to adopt a more negative attitude or tone of voice.
另一项研究表明，缺乏睡眠让人们的态度和说话的语气都更为负面。
In this test participants are briefly shown photographs that may be positive, negative or neutral in tone.
在这个实验中，实验参与者们短暂地看一些照片，这些照片的“格调”可能是积极的、消极的或者中性的。
What material that has been available, has been superficial, moralistic, highly negative in tone, frequently flippant and often plain inaccurate.
其他所拥有的资料，都是肤浅的、说教的、在基调上高度负面的、时常是轻浮的而且通常是根本就不准确的。
You never want to turn the tone of the interview negative, even if you may be having a bad experience at your current job.
即使你在现在的工作中的确处境糟糕，也不能在新工作的面试中说它的坏话。
This sentence means that certain behaviors, phenomenon or opinions have been out of date, so to express a negative attitude or tone of the speaker.
这个句子的意思是某种行为、现象、看法已经过时了。表达说话人否定的态度或语气。
This sentence means that certain behaviors, phenomenon or opinions have been out of date, so to express a negative attitude or tone of the speaker.
这个句子的意思是某种行为、现象、看法已经过时了。表达说话人否定的态度或语气。
The tone of a letter that contains a negative message should reflect a sincere concern for the receiver's interests.
含有负面信息的信函的语气应该反映对于接收者利益真诚的关心。
The resultant negative transparency is essentially complimentary to the original scene in both tone and color.
最后得到的负性透明片，在色调和颜色方面均和原景物成互补关系。
It was so far removed from the charm which is sought in landscape by artists and view-lovers as to reach a new kind of beauty, a negative beauty of tragic tone.
它决不是那种画家和爱好风景的人所追求的那种美，而是相反的带有悲剧情调的美。这个地方的名字就是从矗立在那儿的那个石头柱子来的。
It was so far removed from the charm which is sought in landscape by artists and view-lovers as to reach a new kind of beauty, a negative beauty of tragic tone.
它决不是那种画家和爱好风景的人所追求的那种美，而是相反的带有悲剧情调的美。这个地方的名字就是从矗立在那儿的那个石头柱子来的。
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