In this enlargement, barley, alfalfa, and sugar beets can be differentiated.在这张放大的照片上, 大麦, 苜蓿和甜菜都能被区分开.During rationing we had a sugar allocation.定量配给时期，糖是限量配给的。Maple sugar is made from the sap of maple trees.枫糖是由枫树的树液制成...
What do you mean by anneal?你说的退火是什么意思?The puller also applied growing and vacuum anneal of laser crystal.该设备也适用于多种激光晶体的生长和激光晶体的真空退火.Firstly, equiaxed microstructure could be produced by treatments including hot compressi...