品级,即官品,是区分官员地位高低的等级。魏、晋分官员等级为九品,自一品至九品。北魏每品各分正、从,共十八品,四品以下各品又各分上、下阶,共三十阶。唐、宋文职同北魏,武职三品起分上、下阶。元、明、清文武官皆分九品,各有正、从而无上、下阶之分。
食品级 Food Grade ; PP ; ys ; LFGB ; food grade
商品级 [贸易] commercial grade ; merchant quality ; trade grade
食品级液压油 l for the food industry ; Shell Cassida HF Oil
矿石品级 ore grade ; grade of ore ; industrial ore sorting
品级指数 IMC Index
德国食品级材料测试 LFGB
官吏的职位或品级 rank
食品级符合 FCC
食品级焦磷酸钠 TSPP
煤品级 grade of coal ; coal rank
The main properties of our new grade of modified POM are that the tensile strength is 5060MPa,the impact strength (notched) is larger than 12kJ/ m2,the accuracy grade of small mould number gear is Grade 7,the friction coefficient is 0. 2-0.
所研制的新品级的主要性能指标为:拉伸强度50~60MPa,缺口冲击强度≥12kJ/m2,制作的小模数齿轮精度等级达7级(GB2363—80),摩擦系数为0.20~0.30。
参考来源 - POM/LDPE共混改性新品级的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
玻璃,不锈钢和一些塑料就属于食品级材料。
浓缩原铀比将高浓缩铀转化至燃料品级更昂贵。
Enriching raw uranium is more expensive than converting highly enriched uranium to fuel grade.
每天早上用户的移动电话都会收到短信息,告诉他们当天可以购买的货品及其品级。
SMS messages are sent to users' mobile phones every morning with the offers and grades available for purchase on that day.
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