roll parting中文什么意思

• 辊缝锁口

• roll:    vt. 1.滚，转，推滚(桶、车轮等)，使(烟、尘土)滚 ...
• parting:    adj. 1.临别的，临别纪念的；最后的；离去的；将要过 ...
• roll parting line:    零位线; 轧辊孔型中线
• parting:    adj. 1.临别的，临别纪念的；最后的；离去的；将要过去的；临终的，临死的。 2.分离的，分隔的，分开的。 a parting gift 临别纪念品。 a parting reception 欢送会。 parting words 临别的话，临别赠言。 aparting line 分隔线。 n. 1. 分别，离别；死亡。 2.分离，分裂，裂开。 3.(道路的)岔口；(头发的)分缝；分界；分界处；分界线；分界点。 4.分开物，分离物；【冶金】分金〔指有色金属如金银的分离〕；【机械工程】(铸工)分离砂，分离材料。 the parting of the ways 岔口，道路分歧点；十字路口。 at the parting of the ways 处在十字路口。
• a parting bow:    告别时的鞠躬

例句与用法

1. Xm ) trundle needle , trundleing the post thrust bearing trundles the needle through the roll part of the body , cylinder roller and thrust maintain shelf and the thrust bed down the livestock to make up , trundleing needle and the cylinder roller is subjected to the shelf maintaining that the thrust maintains and guides . moreover thrust bed down the livestock against the difference , shaft , the pedestal encircles and employs in company , fix module shaft shoulder end face and the shell opening back plane dimensional tolerance , geometry accuracy , rigidity , axial is moved up and down , coarse degree ought to accord with the internation ， national standard stipulation demand
   滚针，滚柱推力轴承由滚动体滚针，圆柱滚子及推力保持架和推力垫圈组成，滚针和圆柱滚子受到推力保持的保持架引导，并与不同的推力垫圈，轴，座圈一起使用，安装组件的轴肩端面和外壳孔底面的尺寸公差，几何精度，刚性，轴向跳动，粗糙度应符合国际，国家标准规定的要求。
2. The elementary idea of the reference units method can be described as follows : firstly , by the setting of double series of reference units , we can control the highest and lowest land quality class of each village or town ; secondly , the class of the arable land will be get through the contrast between the arable land with the reference unit which has been selected in the same area , the difference in quality is the key factor to classify the land . the results show , 87 . 6 % of the lands from i to iii distribute on alluvial and lacustrine plains , where the associated soils are mainly grey fulvo - aquic and calcareous concretions black ones . and 61 . 4 % of them from iv to vi distribute on slightly rolling parts with mainly yellow - cinnamon soil developed from the diluvial and slope deposits
   分等结果表明：卧龙区等的耕地中，有87 . 6分布在冲积、湖积平原区，主要土壤类型是在河流冲积物上发育形成的灰潮土、在湖相沉积物上发育形成的砂姜黑土；等耕地中，有61 . 4分布在垄岗区，主要土壤类型是洪坡积物上发育形成的黄褐土：而、等耕地集中分布在丘陵区，主要土壤类型是残坡积物上发育形成的粗骨性黄褐土，等别结果分布总体上体现了不同地貌类型、土壤条件下耕地质量的差异。