采用高紧密进口设备制造的导管，进口医用级热敏性高分子材料为原料，使导管具有良好的柔韧性和弹性，可降低病人在留置时的痛苦。
Imported medical grade heat-sensitive polymer materials as raw materials to make pipe has good flexibility and elasticity of. Can reduce the pain of patients in retention.
采用真空间歇精馏技术对桃醛原料进行分离试验，考察了桃醛的热敏性，确定了安全的操作温度范围和适宜的操作方法。
The experimental study for purification of peach aldehyde by vacuum batch distillation, as well as the heat sensitivity of the product, is carried out.
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