Heartburn also know as acid reflux is caused by progesterone relaxing the valve separating the esophagus from the stomach allowing acids to seep up the pipe.
胃灼热，同时也被叫做胃酸倒流，这是因为黄体酮使瓣膜松弛把食道和胃分开了，这会让胃酸渗到食管里。
Heartburn, also know as acid reflux, is caused by progesterone relaxing the valve separating the esophagus from the stomach, allowing acids to seep up the pipe.
胃灼热，同时也被叫做胃酸倒流，这是因为黄体酮使瓣膜松弛把食道和胃分开了，这会让胃酸渗到食管里。
When separating components or detecting concentrations, the sampling valve is set to allow the gas (liquid) to be measured to flow through the sample column.
当分离组分或检测浓度时，设置采样阀以允许测量气体(液体)流过样品柱。当采样时，采样阀将待测量的气体(液体)引导到载气上的柱。
As a simple device without moving parts, vortex tube is composed of nozzle, vortex chamber, separating plate, control valve, hot-end and cold-end.
由于冷端孔板的阻隔，外层气流便高速螺旋状向热端管运动，流动的涡流特性也同时向热端管运动而逐渐减弱。
The valve, which is also named separating material machine, is widely used in building material, metallurgy, mining, light industry and food industries etc.
该系列三、四通溜子广泛适用于建材、冶金、矿山、轻工、粮食等行业。
The pressure relief valve can be washed easily by rotating and separating the filter screen first.
当需要清洗的时候就可先方便地将过滤网旋转下来后再清洗泄压阀。
The pressure relief valve can be washed easily by rotating and separating the filter screen first.
当需要清洗的时候就可先方便地将过滤网旋转下来后再清洗泄压阀。
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