在(颈椎)中线固定后进行RSI被认为是安全的，但是伤后72小时至6个月内要禁用琥珀酰胆碱，因为其可能会产生高血钾而威胁患者生命。
RSI is felt to be safe with in line stabilization acutely but succinylcholine is contraindicated from 72 HRS to 6 months post-injury because of life threatening hyperkalaemia.
结果表明，风沙土钾素含量较低，土壤速效钾含量及被土壤固定的钾量均随着施钾量的提高而增加。
The result shows that the content of slow-release potassium and available potassium is low. Theamount of available potassium and fixed potassium increase with increasing amount of applied potash.
当土壤经过干湿以后，土壤会发生明显的固定钾作用，土壤含钾量越高，固定钾能力越强。
The soil potassium fixation was increased after dry and humid alternation. Soil with higher potassium content had a higher fixation ability.
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