Equipped with manual axial and radial feeding device . it is easy to quick feeding and backing . it is able to bevel the pipe with good cutting results and high efficiency 具有手动径向轴向进刀机构，可实现轻便灵活的手动进退刀，加工坡口质量好、效率高。
Then , my original researches the means , the thinking of " price decision " and the correlative system of the entering and exiting of state - owned capital 在此基础上，本文深入研究了国有资本的进退的方式和定价思路以及其他与国有资本进退相关的系统。
And yet , with a scant half metre on either side , and not much more space fore and aft , the perfect fit serves only to make these “ panamax ” ships look out of place 然而，左右距岸不到半米，进退空间有限，这种完美匹配只会使得这些“巴拿马型”船只看上去同运河格格不入。
Climatic variation is a major factor of affecting the rate of desertification . the sustained period of water deficit is a direct cause of desertification in arid and semi - arid areas 其中，气候变化是控制沙漠化进退的首要因素，陆表水持续亏损则是导致干旱、半干旱地区土地沙漠化发展的直接原因。
To solve the problem of large search solution computation , an improved optimization algorithm is proposed based on the thought of advance - retreat method , and it raises the solution efficiency significantly 为解决搜索求解计算量大的问题，进一步结合进退法提出了一种改进的优化算法，显著提高了求解效率。
When something unfortunate strikes , as individuals , are we able to face and accept the fact as a society , are we able to stay united , help each other out and work hand in hand 当状况发生后,作为个人,我们是否有能力接受事实面对事实承认事实？当状况发生后,作为社会,我们是否能够团结一致互相扶持共同进退？
In chapter 2 , i made empirical test on china insurance market . i analyze the statistics factors of china insurance , such as market share , degree of concentration , barriers to entry and exit 先对影响我国保险业市场结构的各个要素进行统计分析，如市场份额、市场集中度、进退壁垒等，得出实证性的量化结论。
Water resource in desert , controlling everything , is the key to the development of oasis agriculture . the facility of water conservancy has considerable influence on the rise and fall of oasis agricultural production 水资源是绿洲农业发展的关键，沙漠地区水源支配一切，水利的进退直接影响农业生产的兴衰。
As an icac investigator , tsun understood the need - to - know guidelines . he and gregory had been working together for some time on the otb task force , and a strong mutual trust had been established 秦汉贤也是海外信托银行案件警廉联合专案小组成员之一，与祁国利共同进退了好一段日子，二人在工作上早已建立了深厚的互信。
