分析了造成A 8井堵塞的三种主要原因，认为堵塞的原因依次是污油堵塞、固体颗粒侵入堵塞和地层出砂堵塞。
Three kinds of main plugging factors in A8 well have been analyzed, their sequence is effluent oil plugging, solidity invasion plugging and sanding plugging.
结论旋毛虫幼虫经肠内容物或胆汁孵育后再接种至半固体培养基，可在体外侵入肠上皮细胞并能生长发育。
Conclusion After incubation in intestinal contents or bile, T. spiralis larvae inoculated into semisolid medium invaded intestinal epithelial cells and developed in vitro.
对于实木地板来说，应当选择固体蜡，以此阻止水分侵入，并挡住灰尘。
For wood floors, should choose the solid wax, in order to prevent the intrusion of moisture, and block dust.
应用推荐