Materials selection and design for development of sustainable products这句话（一个论文的标题）是什么意思啊?

英语：a selection of recorded materials 1 Materials selection and design for development of sustainable products这句话（一个论文的标题）是什么意思啊? premium selection selection是什么意思 self-selection controversy over books and films used in schools has caused school boards to consider (should they get involved/ Whether they should get involved) in selection procedures for such materials.括号里两个句子哪个可以,为什么另一个不可 英语翻译Many engineers have as their function the designing of products that are to be brought into reality through the processing or fabrication of materials.In this capacity they are a key factor in the material selection-manufacturing procedur 英语翻译Voids in the encapsulant are a potential problem,these can originate during dispense,die placement,or reflow,but can be eliminated through proper materials selection,board preparation dispense parameters and reflow condition. nature materials no selection是什么意思 quite a selection finest selection什么意思 A complete Selection of invert selection是什么意思 self-selection是什么意思 block-selection是什么意思 clear-selection是什么意思 invert selection是什么意思