成因的英文：
cause
factor

参考例句：

geomorphology deals with the origin of landscapes and changes in them
地貌学研究地形的成因及其变化。

The objection to the placer origin have centred around the softness of uranium compounds
反对砂矿成因的论据主要是:铀的化合物不耐磨蚀。

Pathology：Medical specialty dealing with causes of disease and structural and functional changes in abnormal conditions.
病理学:处理疾病的成因与异常症状的构造及机能变化的医学专科。

The obliquity of the ecliptic is the fundamental cause of the seasons
黄道的倾角是季节的基本成因。

The branch of petrology that deals with the origin of rocks,especially igneous rocks.
岩石成因说，岩石发展学研究岩石成因的岩石学的一个分支，尤其是火成岩的成因

The origin of these deposits is still not rigorously demonstrated
矿床的成因并没有被严格地论证过。

In addition, reference is made to the novel techniques of measuring radiogenic heat
此外，还介绍了一些新方法，例如测量放射成因地热。

He's claiming to have an insight into how things cause other things.
他的论断洞悉到了事物之间是如何导致成因的。

radiogenic heat, even from a fairly deep-seated uranium orebody, could be measured
即使铀矿体埋得足够深，它的放射成因热也能被测出。

The disease comes on gradually as fat, cholesterol, and calcium accumulate and harden inside an artery
血管栓塞的成因是脂肪、胆固醇和钙质在血管内逐渐集聚并导致血管内部硬化，

cause是什么意思：
n. 原因；理由；事业，目标
v. 引起；使遭受；促使

There is no cause for concern.
不必担心。

To cause to zoom.
使急遽上升，使猛增

To cause to taper.
使成锥形

To cause to patter.
使发出嗒嗒声

To cause to disintegrate.
使瓦解；使蜕变

factor是什么意思：
n. 因素；因数；代理人
v. 做代理商；分解…的因子，将…分解成因子；把…作为因素考虑

factor of amplification
仪器放大率

susceptibility factor
敏感因素|感受性因数

These amplify the effects of other factors.
这放大了其他因素的影响。

Cost can be a deciding factor.
价格恐怕是一个决定因素。

Each factor has been numbered.
每个要素都编了号。