1700993170
5-53
1700993171
1700993172
1700993173
5-54 (1)μ≥O.7; (2)(3)略.
1700993174
1700993175
1700993176
5-55
1700993177
1700993178
1700993179
5-56
1700993180
1700993181
第 六 章
1700993182
1700993183
6-1 0.5cm.
1700993184
1700993185
6-2 0.63×105Pa.
1700993186
1700993187
1700993188
6-3
1700993189
1700993190
6-4 1.0×104N.
1700993191
1700993192
6-5 (1)98N,9.56N; (2)略.
1700993193
1700993194
1700993195
6-6
1700993196
1700993197
1700993198
6-7
1700993199
1700993200
6-8 F与直管成52.5°角,F=55N.
1700993201
1700993202
1700993203
1700993204
1700993205
6-9 时,pA=pB;时,pA<pB;时,pA>pB.
1700993206
1700993207
6-10 9.5m/s.
1700993208
1700993209
6-11 8.8m/s.
1700993210
1700993211
6-12 8.3m/s,9.0m/s.
1700993212
1700993213
6-13 46cm.
1700993214
1700993215
6-14 (1)7.0×10-3m3/s; (2)4.3×10-3m3/s.
1700993216
1700993217
1700993218
6-15
1700993219
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