保持

For example,we should insist the rule"early to bed and early to rise",every morning do some exercise to keep healthy,we shouldn't eat something unhealthful,like barbecue or junk food,we should have good living habits and regular eating habits,we should always remember that smoking is harmful,and never try it,we're supposed to keep a positive attitude,do not be pessimistic.

比如，我们应该坚持"早睡早起"的原则，每天早晨起床做运动以保持健康，我们不应该吃一些不卫生的食品，比如烧烤或是一些垃圾食品，我们应该养成好的生活习惯和饮食习惯，我们应该时刻记着抽烟有害健康，决定不能吸烟，我们应该保持积极的心态，不应该悲观地看问题。

This is the rationale behind universal gravitation.

当这种能级增加体积缩小的基微子能级保持时，就会对周围的以太保持持续的引力，这是万有引力的基本原理。

The principle and trajectory feature of the upper limit control are analyzed,and the rule of upper limit control is presented.Moreover,the depth trajectories for torpedo to enter into the upper limit depth by three control modes during pursuing target are calculated and simulated.

本文分析了上限控制的原理和弹道特点，给出了上限控制基本规律，对鱼雷以跟踪目标进入上限、跟踪保持结束进入上限以及在上限上方跟踪保持结束等3种不同控制方式进入上限的深度弹道进行了数学仿真计算。

Given these numbers, the Uruguayan striker assures that we will try to keep up the good work, to make our good form count.

根据这些数据，乌拉圭射手保证：我们将在比赛中保持良好的状态，保持队形。

By analyzing the core competence the dissertation has proved it is a matching standard of the two-element structure. The aims of any management changing are forming and keeping the competition predominance. The steady resource of the competition predominance is forming and keeping the competition predominance. The core element of competition predominance (such as, the foresight, leading, innovation, quality, entrance vallum, customer regulation, changing cost and partner-relationship.) is a key factor that to found a sueeessful enterprise whatever the changing has occurred in the environment.

通过对核心竞争力的分析证明核心竞争力是两种要素结构匹配的标准或依据；管理变革（包括基于信息系统的管理变革）的目的是为了形成并保持竞争优势，而稳定的竞争优势的来源是形成并保持核心竞争力；不论环境发生了怎样的变化，远见、领导、创新、质量、进入壁垒、消费者规定、转换成本和伙伴关系等仍是建立一个成功企业或具备竞争优势企业至关重要的因素，它们来源于管理系统7要素：文化、人、战略、组织、专业管理、技术管理和信息的有效结合，这种结合形成核心竞争力；管理变革的重要途径就是形成核心竞争力的关键要素的有效结合。

The sixth part: Studies on the dynamic changes of soil retention function value of ecosystem in YUYANG District. Utilized ERDAS8. 5 to interpret the remote sensing image and get LUCC data and vegetation information of YUYANG District. Utilized R2V5. 5 to digitize administrative map, topographic map, vegetation picture, soil distribution map and meteorological website map. Utilized ARCINFOR8. 3 to change every digitization layer to the same projection, to generate Tyson polygon, to structure DEM and do vector polygon overlay. Utilized ARC VIE W3. 3 to obtain the grid data topographic slope and slope length from DEM data of YUYANG District, and then, turned every coverage layer into grid layer and do grid polygon overlay to gain data about dynamic changes of value of soil retention of ecosystem in YUYANG District, at last, the author analyzed the features of the spatial-temporal changes and its reason.The seventh part: Studies on the dynamic changes of fixing drifting sand against wind function value of ecosystem in YUYANG District.

第六部分：榆阳区生态系统土壤保持功能价值动态变化研究；利用ERDAS8.5对遥感数据进行解译获得榆阳区土地利用数据和植被信息，利用R2V5.5数字化榆阳区政区图、地形图、植被图、土壤分布图及气象站点分布图，利用ARCINFOR8.3对各数字化图层进行投影转换、泰森多边形生成、DEM构建和叠加分析，利用ARCVIEW3.3从DEM数据中获取榆阳区的坡度、坡长面域数据，并将上述各图层格网化，然后通过栅格图层叠加分析和代数运算获取榆阳区生态系统土壤保持功能物质量和价值量时空动态变化数据，最后分析了其变化的时空特点及形成原因。

If you can remain detached and calm they may begin to feel guilty about venting their anger on you.

如果你能保持置身于外，保持平静，那么他们也许会对把气泄在你身上感到内疚。

The pilot of an VFR flight, considering that operation in VMC will become impossible, shall

按照前条准许航空器保持VMC的飞行时，如不可能保持或有此顾虑时，应发给其替代的管制许可。

Via the media, we are constantly bombarded withsuggestions to be slim, do exercise, and feel fit.

通常媒体，我们不断地被各种各样的建议所包围，诸如要保持苗条、要锻炼身体、还要保持好的精神状态等等。

Via the media, we are constantly bombarded with suggestions to be slim, do exercise, and feel fit.

通常媒体，我们不断地被各种各样的建议所包围，诸如要保持苗条、要锻炼身体、还要保持好的精神状态等等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。