improved material中文什么意思

例句与用法

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1. experimental investigation on improving material used for valve guide pipe of 6110 model diesel engine
   6110柴油机气门导管材料改进试验研究
2. we are major in sale all kinds of project plastic raw-material new and improved material, including
   我公司主要经营各国进口工程塑胶原料及特种工程塑料:pa46pa6tpa9tpa11pa12lcppps
3. legal countermeasures should he taken to perfect in infrastructure construction and improve material environment so as to attract investment, extend financing channels and raise investment return
   为此，必须采取相应的法律对策，建立和完善基础设施建设，改善吸引投资的软环境，拓宽融资渠道，提高投资效益。
4. a full review of police uniforms led to a newly designed functional working dress with improved materials that meet occupational and safety requirements . consultation amongst all force members is now underway
   警队曾全面检讨警队制服，建议采用更佳衣料，以及设计新式工作服，照顾人员的职业安全及健康的需要。