在集中设备处加热(或冷却)转换可以是手动或自动.Heating or cooling change over at the central plant may be manual or automatic.在绝大数工厂里, 材料经常需要加热或冷却.In almost any plant, materials constantly being heated or cooled.根据所输送介质需要,螺杆泵装置可提供加热或冷却结构.Accor...
He programmed his computer to compare all the possible combinations.他给他的计算机编制了一套程序，以比较所有可能的组合。How do the two techniques compare in terms of application?这两种手法实际运用起来哪个好一些？The more recent conifer plantations cannot yet comp...
There are still major lacunae in the material available.手边的材料依然存在严重缺漏。The bony spicules are even, with occasional lacunae containing osteocytes.骨板连续均一, 偶尔可见包含骨细胞的腔隙.Black air - filled lacunae in which osteocytes once liv...