一般堆石体最大粒径不应超过层厚的()。 ["1\/2","1\/3","2\/3","3\/4"]
什么是德尔斐法?它具有哪些特点?
下列选项中,属于商业秘密特征的是()。 ["经济性","秘密性","措施性","合法性"]
ZXCTN 6130支持按照802.1ad的颜色编码模型进行编码,支持的模型不包括() ["5P3D","6P2D","7P1D","8P0D","4P4D"]
JDT40/75表示()。 ["齿柄宽度40mm","齿头长度75mm","固定方式为弹性卡圈","刀型截齿"]
什么是渔缸法?