Jig plates can be divided into fixed , hinged demountable and swing types.常见的钻模板有固定式、铰链式、可卸式 、 悬挂式等四种结构形式.Oil prices continued an upward swing in New York this morning.今天上午纽约油价继续上扬。His moods swing alarmingly.他的心情时好时坏,令人担...
There will be a radical swing to the right or the left.这样将出现极左或极右的情况。Oil prices continued an upward swing in New York this morning.今天上午纽约油价继续上扬。Keep the head of the club the same height throughout the swing.整个挥杆过程中要使杆头始终...