vacuum canning造句

例句与造句

But the same vacuum can be converted into a door
但是，同样的真空能被转换成门。
When a constant heating temperature is maintained , increasing the vacuum can speed up the drying process
当加热温度恒定，提高加热湿度，能加快干燥速率。
The increased speed simplifies the bec apparatus quite dramatically because the vacuum can have 100 times as much residual gas in it
速度的增加可以大为简化bec仪器，因为这时真空里残留的气体量可以多100倍。
The two main schools of thought about speciation that emerged in the 20th century to fill this intellectual vacuum can be summed up as “ breeding defined ” and “ niche defined ”
20世纪出现的填补了这项学术空白的两大思想学派可被总结为“繁殖决定型”和“环境决定型” 。
The ground tests of inflatable structures can hardly reflect real work environment in space because of the effect of gravity and atmospheric pressure . and tiny gravity and vacuum can hardly be satisfied at the same time . moreover , the cost of space testing is prohibitive expensive
空间充气展开结构的空间实验花费往往极为昂贵,而由于重力和大气压力的影响,充气结构的地面实验又很难模拟实际空间工作环境,微重力和真空环境也很难在较大空间内同时实现。