1. 网友应注意，句子开头的单词，首字母要大写：Research...

2. However 前面应该是句号（.）。

3. 分号是两个并列句的标志，可以代替并列连词and, so，but 等。the environmental effects have not been explored. 的前面用了分号，说明跟前句是并列关系。如果添加连词的话，应是but。

However, they only analyzed that feasibility in terms of mechanical properties of the SC; the environmental effects have not been explored.

等于：However, they only analyzed that feasibility in terms of mechanical properties of the SC, but the environmental effects have not been explored.

【翻译】然而，他们只从SC 的力学性能方面分析了这种方法的可行性，（但）对环境的影响还没有探讨。