The cause of this association is not known warranting further investigation.

该相关性的原因仍未知，因此需要进行进一步研究。

Especially those relating to the circumstances warranting the detention of a ship.

则，特别是那些关于构成滞留船舶正当理由的情形的导则。

How to break crop yield stagnation is a serious question warranting an explanation.

如何打破作物产量徘徊的局面是应找到答案的一个严重问题。

Warranting the required separation efficiency, trough and angular type separators are featured by low flow-resistance.

在保证分离效率的前提下，槽形和角形分离件具有流动阻力小的特点。

The system's design is rational, it operates stably and may be serviceable for warranting the set's operational safety.

系统设计合理，运行稳定，可保证发电机组的安全运行。