哭闹经常无明显原因。
发烧或无明显原因的生气可能是泌尿道感染所致。
Fever and fussiness without an apparent cause may result from UTI.
美国一项新的研究已发现占小比例的动脉斑块致命并引起心脏病发作或中风的原因，以及大多数其它动脉斑块是良性的、无明显危害的原因。
A new US study found why a very small proportion of arterial plaques become deadly and lead to heart attack or stroke and why the vast majority others stay benign and apparently do no harm.
无明显的原因而恼火；
参加体育锻炼的原因和动机上无明显差异；
There is no clear difference in sports motive and the reason to take part in exercise;
有6例心脏无明显器质性改变，称之为阴性解剖或青壮年不明原因猝死。
There were 6 cases without obvious cardiac organic pathological changes, which were called negative autopsy or juvenile sudden unexplained death.
黑眼圈大小和症状无明显关联性的一个原因可能是研究当中无法对眶下地区进行较深入的研究。
One explanation for the lack of correlation between size and symptoms is that infraorbital areas might be less adjustable than the depth, say researchers.
毒性事件如恶心、呕吐、腹泻、发热性中性粒细胞减少、脱水或者60天各种原因所致的死亡率在两个治疗方案之间并无明显差别。
Toxicity profiles were not significantly different between regimens for nausea, vomiting, diarrhea, febrile neutropenia, dehydration, or 60-day all-cause mortality.
结果表明，微观组织无明显偏析，连铸工艺参数选择不当是X65出现裂纹的主要原因。
The results show that obvious segregation is not found in the microstructure and the main reason appeared crack in X65 steel is improper process parameters during the continuous casting.
结果表明，造成碳纤维力学性能低的直接原因可以归结为严重的皮芯结构、芯部组织疏松或有孔洞出现、晶相少且无明显取向、石墨层排列紊乱。
The results demonstrate that the carbon fibers which have serious skin-core structure, few graphite layers which intricately piled up have low mechanical properties.
结果表明，造成碳纤维力学性能低的直接原因可以归结为严重的皮芯结构、芯部组织疏松或有孔洞出现、晶相少且无明显取向、石墨层排列紊乱。
The results demonstrate that the carbon fibers which have serious skin-core structure, few graphite layers which intricately piled up have low mechanical properties.
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