The resistance to lubricating greases of some O-ring NBR seals was studied in this paper. The swelling of NBR in different lubricating greases were discussed.
研究了O型丁腈橡胶密封圈中腈基含量对其耐润滑脂性能的影响，讨论了不同性能润滑脂对丁腈橡胶的溶胀作用机理。
The mechanical strength including flexibility, tenacity and resistance to water swelling limits the application of chitosan in membrane separation.
其主要目的在于减小线缆的尺寸和重量，增加了线缆的柔软性、耐热水性和耐热性等机械物理性能。
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