大家在查：赛义德·艾 arridge 雑 zhgyseu 跳萨全国法定沙堆镇 Meiggs 2009年9月份 3.36亿

180o

180o

180o

180o

1

Rotate one half of the valve body 180o making sure the lower valve seat and oring stay in position .

将阀体的一半旋转 180o ，确保较低的阀座和 O 形环留在位置上。

2

Split roots of 11 week old plants : note that these roots were not cut : the cortex has split leaving 180o, opening .

11 周后老植株的裂根：注这些根未被切：皮层已经 180 度裂开，成通道。

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