防避强风也是基本要求。
基线监测工作的目的是要监测潜在环境情况和种群的转变，以作为防避所有负面影响的警告系统。
The objective of the baseline monitoring work is to detect change in underlying environmental conditions and species populations to act as a warning system against any adverse impacts.
如果使用这个方法，一定要确定钻孔时要从外拍框向内拍框打孔，谨防避震条钻下的部分进入拍体。
If using this method, be sure to punch the holes from the opposite side and snip off the punched pieces of lead to avoid having them come loose inside the frame.
如果使用这个方法，一定要确定钻孔时要从外拍框向内拍框打孔，谨防避震条钻下的部分进入拍体。
If using this method, be sure to punch the holes from the opposite side and snip off the punched pieces of lead to avoid having them come loose inside the frame.
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