Shanxi Formation is a set of paralic continental deposit,of which,fluvial,swamp and lacustrine facies alternatively presented regularly.
山西组为套近海型的陆相沉积,其中河流相、沼泽相及湖泊相有规律地交替出现。
Shanxi Formation is a set of paralic continental deposit,of which,fluvial,swamp and lacustrine facies alternatively presented regularly.
山西组为套近海型的陆相沉积,其中河流相、沼泽相及湖泊相有规律地交替出现。
Alternatively, initially perform a TEE, and if no thrombus is present, cardiovert and therapeutically anticoagulate for a minimum of 4-6 weeks after sinus rhythm is restored.
或者,先做个TEE检测,如果没有发现,律窦性心律后,至少进行4-6周抗凝治疗。
Alternatively, a new version of a gene can also be created through reverse transcription: during gene expression, the mRNA is copied back into a sequence of DNA that is inserted into the genome.
其二,新的基因本也可能透过反转录作用,将基因表现出来的mRNA反转录成DNA序列,再插回基因组内,这种现象称为反转录移位(retrotransposition),发生在细胞内称为长散布核因子(LINE)的转位子活动时。
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