The system has 256 MB RAM, expandable to 2GB.

　　這個(gè)系統內存256兆字節，可擴充到2千兆字節。

　　Expandable tube will be developed for well construction in single hole.

　　膨脹管技術(shù)的發(fā)展方向，是單一直徑井眼的建井技術(shù)。

　　This method is simple for use and also has expandable ability if combining with the system design.

　　該方法簡(jiǎn)潔實(shí)用，結合系統設計仍有更進(jìn)一步擴展的潛力。

　　Study on expandable tubular technology& key points and first application.

　　膨脹管關(guān)鍵技術(shù)研究及首次應用。

　　Research of optimization on personal expandable consumption during the life period.

　　生命周期個(gè)人拓展消費的優(yōu)化研究。