空化(或称气穴)是流体系统中常见的现象,它显著地影响着流体管路的瞬态特性.It an obvious effect on the transient characteristics of the fluid system.空化水洞是研究空化现象的实验设备之一.Cavitation water tunnel is one of experimental facilities studied cavitation phenomenon.利用...
The seed has very big embryo but without endosperm, often provide aril.种子有很大的胚但无胚乳, 常具假种皮.Aril rusty and polish when ripe.假种皮红色,熟时有光泽.Seeds enveloped by red succulent aril.种子有红色肉质假种皮....