针对油气井井下机械取样器在使用过程中出现的问题，研究开发出了智能型微电子高压物性取样器。
To the problems occurring at using down hole mechanical sample noil and gas Wells, aptitude microelectronic high pressure sample has been studied.
即在标准地中采用随机或机械抽样方法选取样木，进行树干解析，获得样木生长过程；
In sample plots, sample trees are randomly or systematically selected and growing process is studied by stem analysis.
应用推荐