对于疏松粉细砂地基土的加固处理，目前尚无成熟的经验和现成的规范。
For the consolidation treatment on loose powdered fine sand base there are no mature experience and the existing specifications now.
目前在此地质条件下尚无成熟的地下开挖施工技术，而且可借鉴的施工经验也很少。
At present in the geological conditions of the not mature of underground excavation construction technology, but also for the construction experience are few.
目前国内外储层改造界均在积极探索碳酸盐岩储层加砂压裂改造技术，但尚无成熟的经验可供借鉴。
The tech of adding sand fracture treatment in carbonate reservoir is on the process of exploring in domestic and abroad which has not rich experience for reference.
由于非法吸收公众存款犯罪是新《刑法》所设的新罪名，目前，在办理此类案件时尚无经验可供借鉴。
Illegal collection of personal savings deposits is a new charge in new Criminal Code. No experience can be used for reference in investigating a case of this kind.
在我年轻尚无经验时相信的许多事情，现在我不相信了。
I believed a lot of things in my callow youth that I do not believe now.
这种型式截面肩梁目前尚无精确的计算理论和方法，过往的设计方法是把两块腹板近似看作合并在一起的单块腹板，然后参照单腹板的经验公式进行计算。
As no precise method to design this type of shoulder-beam can be used in practice up to now, it was calculated as a single-web shoulder beam with the thickness of two webs.
这种型式截面肩梁目前尚无精确的计算理论和方法，过往的设计方法是把两块腹板近似看作合并在一起的单块腹板，然后参照单腹板的经验公式进行计算。
As no precise method to design this type of shoulder-beam can be used in practice up to now, it was calculated as a single-web shoulder beam with the thickness of two webs.
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