冷冻能力的定义?
参考答案:冷冻能力又称制冷量,是表示一台冷冻循环装置的制冷效益。即制冷剂在单位时间内从冷冻物料中取出的热量。
I think your suggestions are of great ________ to me and they are well worth ________.
A.valuable; to offer
B.valuable; giving
C.value; taking
D.value; to follow
女,38岁,面银汞合金充填,做PFM冠时,基底冠蜡型面回切的厚度是()。
A.0.3~0.5mm
B.0.5~1.0mm
C.1.0mm
D.1.2~2.0mm
E.2.0mm以上