It is prepared by reacting anhydrous ammonia and carbon dioxide gas under very high pressure in the presence of a suitable catalyst.
它是在某种催化剂参与下，由无水氨和二氧化碳气体在高压条件下反应生成的。
We also disclosed that under high pressure of carbon dioxide with potassium hydroxide as base, the same reaction also proceeds.
我们还发现以氢氧化钾为碱，在高压的二氧化碳下，这个反应同样可以进行。
Carbon dioxide is also pumped as a liquid into high-pressure cylinders which are filled by weight.
还可以把二氧化碳泵入根据重量来灌装的高压钢瓶。
"Another (new) method USES liquid carbon dioxide in high-pressure equipment," said Pat Slaven of Consumer Reports.
“另一位(新)方法使用液态二氧化碳在高压力的设备，说：”八斯拉消费者报告。
Soft drink bottles buy carbon dioxide in high-pressure cylinders from manufactures who produce the gas to comply with food purity regulations.
现在软饮料制造商从遵照食品纯度法规生产二氧化碳的供应商处购买高压钢瓶装的二氧化碳。
The raw feed after roasting was leached by water, and then by ammonium bicarbonate and introduced carbon dioxide under high pressure.
焙烧后的物料先用水浸，再用碳酸氢铵并通入二氧化碳加压浸出。
The raw feed after roasting was leached by water, and then by ammonium bicarbonate and introduced carbon dioxide under high pressure.
焙烧后的物料先用水浸，再用碳酸氢铵并通入二氧化碳加压浸出。
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