Which of the following statements is true about the PKN model and the KGD model? A: PKN model is suitable for the fracture with a long fracture length greater than the fracture height. B: KGD model is suitable for the fracture whose height is far greater than its length. C: The plane assumption of PKN model is the direction of fracture width and height. D: The plane of KGD model is assumed to be joint width and seam length direction.
Which of the following statements is true about the PKN model and the KGD model? A: PKN model is suitable for the fracture with a long fracture length greater than the fracture height. B: KGD model is suitable for the fracture whose height is far greater than its length. C: The plane assumption of PKN model is the direction of fracture width and height. D: The plane of KGD model is assumed to be joint width and seam length direction.
关于PKN模型和KGD模型,以下表述正确的是? A: PKN模型适用于缝长远大于缝高的裂缝 B: KGD模型适用于缝高远大于缝长的裂缝 C: PKN模型平面假设是缝宽和缝高方向 D: KGD模型平面假设是缝宽和缝长方向
关于PKN模型和KGD模型,以下表述正确的是? A: PKN模型适用于缝长远大于缝高的裂缝 B: KGD模型适用于缝高远大于缝长的裂缝 C: PKN模型平面假设是缝宽和缝高方向 D: KGD模型平面假设是缝宽和缝长方向
DAG可激活的蛋白激酶( ) A: PKA B: PKG C: PKC D: CaMK E: PKN
DAG可激活的蛋白激酶( ) A: PKA B: PKG C: PKC D: CaMK E: PKN
cAMP能直接激活下列哪个物质() A: PKA B: PKG C: PKC D: PKN E: PKB
cAMP能直接激活下列哪个物质() A: PKA B: PKG C: PKC D: PKN E: PKB
某变压器空载损耗 p0 =600W,短路损耗 pkN =2100W,当达到最大效率时,变压器总损耗为()
某变压器空载损耗 p0 =600W,短路损耗 pkN =2100W,当达到最大效率时,变压器总损耗为()
()S=解决问题的能力PC * 领域的知识与经验Pkn * (1+TRIZ方法的运用M)*(1+TRIZ工具的运用T)
()S=解决问题的能力PC * 领域的知识与经验Pkn * (1+TRIZ方法的运用M)*(1+TRIZ工具的运用T)
一台电力变压器,当负载系数β=0.4时达到其最高效率,则空载损耗(P0)与额定负载损耗(PKN)的关系为( )。
一台电力变压器,当负载系数β=0.4时达到其最高效率,则空载损耗(P0)与额定负载损耗(PKN)的关系为( )。
以数字方式查看所有TCP协议连接情况的命令是() A: ss -atn B: ss -lav C: ss -ntp D: ss -pkn
以数字方式查看所有TCP协议连接情况的命令是() A: ss -atn B: ss -lav C: ss -ntp D: ss -pkn
某变压器空载损耗p0=600W,短路损耗pkN=2100W,当达到最大效率时,变压器总损耗为( )。 A: 2700W B: 4200W C: 1200W D: 1500W
某变压器空载损耗p0=600W,短路损耗pkN=2100W,当达到最大效率时,变压器总损耗为( )。 A: 2700W B: 4200W C: 1200W D: 1500W