可以采取哪些强化烧结过程的技术措施?
参考答案:
(1)混合料预热;
(2)加生石灰或消石灰;
(3)热风烧结;
(4)分层布料和双层烧结;
(5)偏析布料。
Please remember to put everything ________ before leaving the room.
A.in the place
B.in need
C.in the order
D.in order
如图所示,太阳光穿过树林,形成光柱是光的 ______现象;雨过天晴,远处的天空.出现美丽的彩虹是光的 ______现象.