同时内置、连杆隐藏，一方面避免药液外溢；另一方面又防止操作时气室、连杆与农作物擦挂。
At the same time, the built-in and link hidden style can avoid liquid spilling on the one hand and prevent the gas chamber and the link rod from scraping with crop on the other hand.
研究者们顺理成章地得出这样一个结论：当黑板被挂擦时，该声响在我们的耳内放大，加剧了痛苦。
What seems to happen, the researchers reckon, is that when a screech on a chalkboard is generated, the sound is amplified within our ears to painful effect.
假定外表再搬家进程中被挂擦能够先用鱼肝油涂上一层。
Assume that appearance was hung in the process of moving again brush can use cod liver oil coated with a layer of first.
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