To know which scenario was correct, the researchers needed to find a transitional form — with characteristics that fall somewhere between bottom-dwellers and the permanently 'rafting' janthinids.

为了研究出哪种猜想是正确的，研究人员需要找到过渡类型，既有底栖蜗牛的特性也有漂浮泡泡蜗牛的特征。

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When anchoring, holding ground refers to the bottom and its characteristics.

在下锚时，holding ground指的是水底的地面以及它的性质。

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According to the characteristics of the underwater image, the bottom layer can be divided into four steps: image denoising, image enhancement, edge detection and edge extraction.

根据水下图像的特点，其底层处理过程分为：图像去噪，图像增强，边缘检测，和边缘提取。

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The reverse head-and-shoulders bottom formation has several well-identified characteristics that allow the investor to clearly determine not only the entry point, but also the stop and profit target.

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