变化化学汽相积沈
MCVD
modified chemical vapor deposition
孵化积温
accumulated hatching temperature
耕地面积变化
arable land area change
change of cultivated land
forecast of farmland
cultivated land
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