Method:First use the rat trace board method, and then use the night trapping method.
方法：首先用鼠迹板法调查，然后用夹夜法。
Objective To study the feasibility on the rat density tested by the plastic rat trace board in residential districts.
目的塑料地板胶制鼠迹板测试居民区住宅外鼠密度可行性。
Trace and cut a circle out of the poster board. Then cut out a 1/2″ to 1″ hole in the center of that circle, depending on whether you’re doing a large or small hat.
首先，在纸板上剪一个圆，在圆的中间剪一个1/2英寸到1英寸的孔，具体大小取决于你所做的饰品大小。
Using a light table I loosely trace the image onto a piece of Bristol board using an 8h pencil.
使用第i一个轻的桌子使用8h铅笔把形象松散地追踪到一片布里斯托尔板上。
The Malaysia Airlines Boeing 777 travelling from Kuala Lumpur to Beijing with 239 people on board vanished without trace in March 2014.
马来西亚航空公司波音777客机载着239名乘客和机组人员，从吉隆坡飞往北京，于2014年3月失踪，无任何踪迹。
He stated forthrightly and somberly: "Tonight we have lost trace of an Air France airplane with 228 people on board, passengers and crew."
他语调阴沉而直接地陈述道：“今晚我们法国航空公司的一架带有228名乘客和机组人员的飞机失踪了。
He stated forthrightly and somberly: "Tonight we have lost trace of an Air France airplane with 228 people on board, passengers and crew."
他语调阴沉而直接地陈述道：“今晚我们法国航空公司的一架带有228名乘客和机组人员的飞机失踪了。
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