Dual tubing well completion is a new well completion technique, because it requires much more downhole tools and more complicated techniques.

双油管完井所需的井下工具较多，工艺也比较复杂，在我国油田开发中是一项比较新的完井工艺技术。

youdao

Practice has proved that the method is relatively suitable to track and field events with less teaching hours and comparatively complicated techniques.

证明该方法比较适应于教学时数少、技术较复杂的田径项目。

youdao

As a large water transport tool with complicated techniques, ship has the features of great capital-investing, high risk-taking and serious accident aftermath.

船舶作为技术复杂的大型水路运输工具，具有投入多、风险大、事故后果严重的特点。

youdao

New York's 432 Park Avenue, potentially the city's tallest residential building when completed in 2016, may also be one of the city's skinniest, with a width-to-height ratio that could require more complicated dampening techniques.

WSJ: Living The High Life

No complicated narratives, no personal themes, no innovations in techniques or cinematography or shots, no daring in the decisions about structure or mixing mediums, and the topics must be serious and yet usually not too divisive in their implications and conclusions.

FORBES: Do The Oscars Have A Best Documentary Problem?