匣钵烧
参考答案:
即将瓷器胚胎放置在粗陶制成的匣钵里烧制。这样瓷器以辐射热来加温而使整个器物受热均匀;同时瓷器表面也没有被窑内的尘埃染脏。
特丽仙和济得所覆盖的菌谱中缺少
A.革兰阳性杆菌
B.革兰阳性球菌
C.革兰阴性菌
D.厌氧菌
E.滴虫
For ships equipped with an SES, it is()and()for the operator to send a distress alert.
A.easy/reliable
B.difficult/cheap
C.stable/compulsory
D.easy/expensive