什么是 foam in bag molding system请问一下foam in bag molding system 是什么东西,原文是这样的,use foam in bag molding system to obtain molded pieces.mold part from 0.4 density sprayed foam in place.请帮忙全部翻译一下就更好

什么是 foam in bag molding system请问一下foam in bag molding system 是什么东西,原文是这样的,use foam in bag molding system to obtain molded pieces.mold part from 0.4 density sprayed foam in place.请帮忙全部翻译一下就更好 什么是shredded memory foam pillow foam 什么是It Bag? it is inside your bag.这里为什么是inside不是in.能改成in吗 look in his bag The pen is yours,mine is in my bag.这句话的主语为什么是mine 新概念英语4问题求教lesson27中,有一句“……with the water churned to foam beneath her bow,her flags flying,pennants waving,sails filling in the breeze…”为什么是“churned而不是“churning,明显不是被动的吧. foam cleansing it's in your bag对in your bag提问 in bag和in the bag的区别 it's in your bag对in your bag提问 what____ (be)in the bag Whart 's in the bag? in which bag?中文意思 when's in the bag? there___no food in the bag. some ? is in the bag