As technical difficulty, the author makes a full experiment to research the auto shaped mechanism of perfusion material flow on the solar battery board.
作为技术难点，作者对灌注料在太阳能电池板上的自动成形机理进行了详尽地研究和试验。
As a result of its tremendous technical complexity and difficulty, the Type 092 project has been trouble-prone since it started in the early 1970s.
巨大技术上的复杂和困难的结果，从1970年早期开始之后092型计划已经有事故隐患。
The author has made an exposition of the theory of airlift reverse circulation machines and tools, and its making way as well, which has solved the construction technical difficulty.
本文着重阐述了气举反循环理论和机具制做方法，从而解决了在岩溶发育地区的施工技术难题。
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