1. But France is also undoubtedly heading for a period of turbulence. Ȼ������Ҳ����ӹ���ɵؽ���һ�ζ���ʱ�ڡ�
2. A strong relationship will get stronger, but a weak or struggling one will hit turbulence and possibly break under the strain. һ�μ�̵Ĺ�ϵ����ø���ɴݣ��������ֲ���г�Ĺ�ϵ�������ڶ�����������ߵķ��ݡ�
3. Result indicates that the ring fins could effectively enhance the turbulence of the mixed gas in the combustor, improve combustion status, and increase the combustion efficiency. ���������˫���γ�Ƭ����ǿȼ�����ڻ������������Ŷ�������ȼ��״������Ч�����ȼ��Ч�ʡ�
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n.
1. unstable flow of a liquid or gas
2. instability in the atmosphere
3. a state of violent disturbance and disorder (as in politics or social conditions generally)