〈技〉 五个一组,五个一套。
"mid 17th cent.: from Greek
n. 五个一组;五个一套
The average PCD in Altay region was 0.205; the average PCP was the 38.12 pentad.
阿勒泰全区汛期降水平均集中度为0.205,平均集中期为第38.12侯。
The annual variation appears a tri-peak form in the curve of dekad- or pentad-hail days evolution.
从旬或候雹日演变看,冰雹年变化具有三峰型;
词根 pentad
pentamerous adj. [植] 五基数的;[昆] 五跗节的;由五个部分组成的
〈技〉 五个一组,五个一套。
"mid 17th cent.: from Greek