单词	key block
释义	DictionarySeekeystone key block keystone, key block keystone, 1: K 1. The central voussoir of an arch, which is often embellished; until the keystone is in place, no true arch action takes
随便看	capillaria granuloma capillaria hepatica capillaria philippinensis capillariases capillariasis capillaries capillarily capillariness capillariomotor capillarioscopy capillarities capillaritis capillarity capillarity correction capillarity tubes capillaron capillaropathy capillaroscope capillaroscopy capillary capillary action capillary action rates in microgravity applications capillary affinity gel electrophoresis capillary angioma capillary array electrophoresis

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