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1·The fruit thinning effect of fruit thinning agent- PD3 with kinetics of blossoms removed and fruit drop was investigated on 'Yali' pear trees.

为明确疏果剂PD3对'鸭梨'疏果效应和疏果后的落果动态，对此进行了研究。

2·Thinning agent and cleaning of tools: water. Remove excess paint from tools and clean them with water or with tool cleaner immediately after use.

稀释剂和清洗工具：水。使用后迅速除去工具上多于的涂料，并用水或清洗工具将其清洗。

3·The most troubling of the short-lived HFCs were invented to replace chlorofluorocarbons, refrigerants that were thinning the ozone layer in the upper atmosphere, and were also a major warming agent.

其中最短命的氢氟碳化合物，被发明取代氯氟烃，制冷剂可以稀释高层空气中的臭氧层，同时也是主要的升温剂。