变化化学汽相积沈
modified chemical vapor deposition
MCVD
孵化积温
accumulated hatching temperature
耕地面积变化
arable land area change
cultivated land
change of cultivated land
forecast of farmland
换热面积变化系数
hot area variety coefficient
积温变率法
Accumulated temperature variability
积温变迁
Changes of accumulated temperature
连续容积变化法
continuous volumetric method
流道面积变化规律
area change rule of channel