就此，柏林社会科学研究中心的学者路得•科普曼斯表示：“对德国产生认同感固然重要，但更为重要是移民使用德语，与德国本土人交往。”
“Speaking the language and having contacts with Germans is more important than feeling German,” says Ruud Koopmans of the Social Science Research Centre in Berlin.
本次远征的目的是研究那阿地区的风土人情。
The purpose of this expedition is to study the customs of that area.
同时，对钙基膨润土人工钠化进行了研究。
Meantime, the study of the modification of calcium bentonite was made.
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