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1·One day, the strong donkey wanted to show off his strength. So he stuffed his cart with lots of baggage and tried to pull it.

一天，这头强壮的驴子想要炫耀自己的强壮了，于是就在自己的二轮运货马车上装满了包裹并且试图拉动它。

2·The gradient PPS/FEP composite anti-corrosive coatings were prepared on carbon steel. The bonding strength of all coating systems was determined by the pull-off test.

在碳钢表面制备了具有梯度结构的PPS/FEP复合防腐蚀涂层，采用拉开法测定了各涂层体系的结合强度。

3·The bongding strength of blended PPS/FEP anti-corrosion coatings was determined by pull-off test. The effects of the blending component PPS on the bongding strength were studied.

采用拉开法测定了PPS/FEP共混改性防腐涂层的结合强度，研究了共混组分PPS对复合防腐涂层结合强度的影响。

4·The influence of concentration of KH-570silane coupling agent solution to the pull-off bonding strength of concrete at the new-to-old interfacial layer was studied through experiment.

试验探讨了KH - 570硅烷偶联剂溶液浓度对新老混凝土粘结界面层拉拔强度的影响。