1. Around the engine cylinder is a water jacket. Χ���ŷ�����������һ��ˮ�ס�
2. Replace the cylinder outlet seal and valve cap. �滻��ƿ�������ܷ�ͷ���ñ��
3. Remove control cables from cylinder head cover clip. ������ͷ�ǿۼ�����ȥ����������
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n.
1. a cylindrical container for oxygen or compressed air
2. a solid bounded by a cylindrical surface and two parallel planes (the bases)
3. a surface generated by rotating a parallel line around a fixed line
4. a chamber within which piston moves