记忆方法
记忆“gradient”这个单词，可以将其拆分为“grad”（意思是等级或步骤）和“ient”（常用于形成形容词或名词，类似于“ent”结尾的词）。构建一个场景：想象一个登山者沿着一个逐渐变陡的山坡前进，每一步都代表着不同的“等级”，这就是“gradient”——坡度的等级变化。这样的联想可以帮助记忆单词的含义。
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中文词源
gradient 斜率，倾斜度
来自grade, 级别，层级。用于科学术语。
英语词源
- gradient (n.)
- "steep slope of a road or railroad," 1835, principally in American English, probably from grade (n.) by analogy of quotient, etc. [OED]. It was used 17c. as an adjective, of animals, "characterized by walking;" in that case it is probably from Latin gradientem, present participle of gradi "to walk."
权威例句
- 1. The car slid down the steep gradient into the river.
- 汽车滑下陡峭的斜坡掉入河中.
- 2. This indicates a hydrodynamic condition with a very marked potentiometric gradient.
- 这说明水动力条件具有很明显的位能梯度.
- 3. 4 gradient arrays marked A, B, C and D were set up.
- 布置了编号为A, B, C,D的四个梯度排列.
- 4. Examples of interactions are mass transfer caused by temperature gradient.
- 温度梯度所引起的质量转移是交叉作用的例子.
- 5. The residence gradient for lung cancer was strongest among nonsmokers.
- 肺癌的居住区梯度在不吸烟者当中最大.