The dip, he says, was triggered by a burst of volcanic activity that deposited new silicate rocks.
他表示，低浓度是由一系列火山活动储存新的硅酸盐岩石触发的。
Economic activity now appears to have declined by 4.1% from peak to trough, easily outstripping the 3.7% dip observed in the downturn of 1957-58 (in 1981-82 the drop was just under 3%).
现阶段，经济活动的峰谷差为4.1%，大大会超过了1957-58年经济衰退时3.7%的最低点。(1981 - 82年，下降不到3%)。
By using a laser to induce pain, Brown and his team found that activity in certain parts of the brain seemed to dip when the study participants anticipated pain.
在使用激光诱发疼痛时，布朗教授和他的研究小组发现，当被研究者预期疼痛时，大脑某部位的活力看起来在下降。
Surprisingly, the only activity to see a dip is uploading videos to video sharing sites.
让人意外的是，唯一出现下滑的是视频分享网站的上传活动。
This was one reason why there was a sharp dip in activity in the April-September period as the relief teams left well before the construction teams arrived.
这就是为什么今年4 - 9月期间在救援队撤出且施工队尚未到达的情况下重建活动骤降的原因之一。
The content of the follow-up forms is mainly from the general information of patients, surgical data and postoperative finger's MP, PIP, DIP joints active and passive activity.
随访表格内容主要由病人一般资料、手术资料及术后患指mp、PIP、DIP关节主动及被动活动度组成。
The second migration power include buoyancy and tectonic activity, which controlled by stratum dip and faulting.
二次运移的动力包括浮力和构造活动力，其主要影响因素是地层倾角和断裂活动强度。
The results show:(1) the Neotectonic activity of the belt is mainly left-lateral dip-slip, the scale of whose level activity is big;
结果表明：（1）断裂带的新构造活动主要表现为左旋倾滑，水平活动规模较大；
The results show:(1) the Neotectonic activity of the belt is mainly left-lateral dip-slip, the scale of whose level activity is big;
结果表明：（1）断裂带的新构造活动主要表现为左旋倾滑，水平活动规模较大；
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