【简答题】滚动轴承内圈与轴配合时,采用——(基准制),其单一平面平均直径公差带布置在零下的——方(上、下)
【简答题】Cloze I Contract law is a part of the law of an legal jurisdiction. The main aim f contract law is to (1) ... that there is fairness in the way a contract is made between two parties and to (2) ... a ...
【单选题】《处方药与非处方药分类管理办法(试行)》规定,处方药与非处方药分类的依据是
【单选题】药品分为甲类非处方药和乙类非处方药的依据是
【单选题】国家将非处方药分为甲类非处方药和乙类非处方药的依据是
【简答题】Book 4 Unit 4 Structure of Text A Introduction (Para. 1) : Two questions are raised to show that people have __1__ ideas about __2__ protection . The introduction paves the way for the author’s ...
【单选题】根据《处方药与非处方药分类管理办法 (试行) 》,非处方药分为甲、乙两类,其分 类依据是药品的
【多选题】Contract law is a part of the law of an legal jurisdiction. The main aim f contract law is to (1)... that there is fairness in the way a contract is made between two parties and to (2)... a mechanism ...
【判断题】标准滚动轴承选择配合时就把它作为基准件,轴承内圈与轴颈的配合采用基孔制,轴承外圈与座孔的配合采用基轴制。
【多选题】下列说法正确的有:
A.
滚动轴承内孔与轴的配合 应采用基孔制,其 外圈与相应的零件孔的配合应采用基轴制。
B.
滚动轴承内孔与轴的配合、滚动轴承外圈与相应的零件孔的配合实际多为过渡配合。
C.
滚动轴承内孔的极限偏差代号均为H;滚动轴承外圈的极限偏差代号均为h。
D.
滚动轴承是不可再加工的标准组件,内外圈直径尺寸是固定的。与轴、孔的配合代号时,只标注与滚动轴承配合的轴或孔的公差带代号。