The probability of packer sticking is increased because of the casing deformation and crustation in casing failure well.
在套,由于套管变形、结垢等因素,进一步加大了封隔器卡钻的能性。
" Water flees fleas" are not insects but copepods, a crustation crustacean like lubster lobsters and crubs crabs but extremely small.
水蚤不是昆虫类而是桡脚类的动物,像龙虾或螃蟹有甲壳的,但是非常小的。
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Krill, that is, small shrimp, feeding on plankton, fish and crustations feeding on krill, bigger fish and sharks feeding on other fish, whales feeding on krill and fish.
虾, 即小虾, 以浮生物为食,鱼和以虾为食,较大的鱼和鲨鱼以其他鱼为食,鲸鱼以虾和鱼为食。
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