对侧和术侧的变化趋势相同。
The change of contralateral was same as that in ipsilateral.
在操纵过程中，必须考虑到侧风对机体的影响。
During this operation we must consider the effect of the left crosswind.
结论：超声心动图对单侧肺动脉缺如具有较高的诊断价值。
Conclusion: It is an effective method in the diagnosis of UAPA by echocardiography.
分析了水泥浆液中掺入水玻璃对水泥凝结时间和无侧限抗压强度的影响。
The paper analyzed the influence of cement-silicate on setting time and compressive strength.
分析了水泥浆液中掺入水玻璃对水泥凝结时间和无侧限抗压强度的影响。
The paper analyzed the influence of cement-silicate on setting time and compressive strength.
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