The causes of the phenomenon are still incompletely understood.

造成这种现象的原因尚未彻底弄清。

《牛津词典》

Radically new physics or incompletely-understood detector background?

是全新的物理还是未能被完全理解的背景噪音？

youdao

Architects can already benefit from incompletely modeled knowledge, such as issue checklists articulating problem statements in question form.

架构师已经能够从不完整的建模知识中获益，比如以问题的形式清晰地描述的问题检查清单。

youdao

Untreated or incompletely-treated sufferers often have pain in their muscles and joints.

VOA: special.2011.07.26

So, some of these cases were probably due to polio that was transmitted by incompletely killed virus that was present in the vaccine.

因此,那些病例的发病的原因,是被那些疫苗中携带的,没有被完全杀死的病毒感染

耶鲁公开课 - 生物医学工程探索课程节选

Aside from its effects on bone growth, its various effects are only incompletely understood.

FORBES: Vitamin D: Still More Questions Than Answers

But bacteria are big and bulky, so they diffuse slowly and incompletely, which makes the tests less sensitive.

BBC: Rapid food poisoning analysis

Information trickled in slowly and incompletely as these events unfolded in real time.

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