Shell says the flow rate is now less than a barrel a day.
壳牌公司称目前每天的漏油速度低于一桶。
As the interface follows the solidification front of the shell metal, the areas of soft core metal showing at the barrel surface, will be patchy and not continuous.
由于结合层往往是沿着外层金属的凝固线所形成的，因此在辊身表面所呈现的此类缺陷是不连续，不规则的。
The process of barrel nickel plating of steel battery shell is strictly controlled in order to reduce production cost and improve product quality.
对电池钢壳滚镀镍工艺进行严格的控制，以达到降低生产成本、提高产品质量的目的。
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