fastness

英['fɑ:stnis]美['fɑ:stnis]

n. 要塞,巩固,迅速

同：	[n.] fixedness, speed, stronghold, swiftness
反：	[n.] looseness

The rebels have withdrawn to their mountain fastness for the winter.
叛军撤至他们的山寨过冬。收藏
Thermosetting resins impart durable press or wash-and-wear properties to the fabric and improve the fastness of the repellent
热定型树脂给织物添加永久性定型或洗穿性能，并改进防护剂的牢固性。收藏

a rate (usually rapid) at which something happens
- the project advanced with gratifying speed
[同] fastness, speed, swiftness
the quality of being fixed in place as by some firm attachment
[同] fastness, fixedness, fixity, fixture, secureness
[反] looseness

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