created their own Chinese characters
... that the Russian Orthodox Church's mission in China created their own Chinese characters for translating liturgical texts?
... that the Russian Orthodox Church's <a href="./Chinese_Orthodox_Church" id="mwBZ0" rel="mw:WikiLink" title="Chinese Orthodox Church">mission in China</a> <b id="mwBZ4"><a href="./Chinese_characters_for_transcribing_Slavonic" id="mwBZ8" rel="mw:WikiLink" title="Chinese characters for transcribing Slavonic">created their own Chinese characters</a></b> for translating liturgical texts?