Support pull down load more old message, keep visible cells static when inserting old message at top.
支持下拉加载更多旧消息，处理了保持可见cell不滚动的效果。
Keep in mind that the set of publicly visible members form the abstraction exposed by the type, along with the type's name itself.
但是记住，公共可见成员的集合构成了类型暴露出的抽象接口，包括类型的名字。
Sometimes this can involve a substantial rework of the back end, but it will generally be pretty easy to keep the user-visible front end stable.
有时候，这可能需要对后端进行实质性的重构，但是在一般情况下用户看到的前端可以保持稳定。
Again, they were able to keep to a straight path only when the sun was visible.
再一次，他们只能在有太阳的时候才能保持直线。
Keep the shopping cart visible: Your new Ajax interface shows users their shopping carts only at the beginning and end of the process.
让购物车可见：新的Ajax界面只在过程的开始和结束部分显示用户的购物车。
Your resources should be defined at the cluster scope to avoid namespace pollution and keep resource definitions visible only in the servers where those resources are actually used.
为避免命名空间污染，应在集群范围定义您的资源，并保持资源定义仅在实际使用这些资源的服务器中可视。
A visible process is considered extremely important and will not be killed unless doing so is required to keep all foreground processes running.
可见进程被认为是非常重要的进程，除非无法维持所有前台进程同时运行了，它们是不会被终止的。
It will keep the metadata and statistics of the run in the metadata repository, and keep the run still visible in the history of the rule.
这会在元数据库中保留运行的元数据与统计信息，并保持运行在规则历史记录中可见。
Opinion 2: Custom media types are necessary to keep interactions visible, and to serve as contracts.
观点2：定制媒体类型如同契约，对于维护交互可视性是至关重要的。
Creating a new content package will allow you to keep your new perspectives together in one package as well as visible and usable by others on your system.
通过创建新的程序包，您可以将新透视图保留在一个包中，系统上的其他用户可查看和使用它。
A visible process is considered extremely important and will not be killed unless doing so is required to keep all foreground processes running.
一个可见进程只有在保持所有前台进程运行的时候才会被认为是很重要的并且不会被杀死。
This number can then be used to derive any adjustments to the drive current or voltage in order to keep the flux output (or the color output of an RGB series of LEDs) inside the visible limit.
我们随后可用这些数值来调节驱动电流或电压，从而确保通量输出（或RGB系列LED的色彩输出）在可见范围之内。
Now that the inner edges of the left and right visible doorways butt up against each other, we no longer need to keep the left image in the front.
现在，左侧与右侧，可见“doorway”的边缘接在一起，我们再不需要将左边图像保持在上方。
It is hard for parents to keep their children away from the television or the computer and the consequences of that are visible.
父母让孩子离开电视或电脑很难，并且结果是显而易见的。
Keep just the parts of Scrum that make sense in a smaller group: daily standups, short sprints, reviews, retrospectives, visible project burndowns.
保持Scrum中在小团队中有意义的部份：每日站立会议、短迭代、检讨、回顾、burndown。
It is important to the artist to keep the technology transparent and visible, including the possibility of its malfunctioning.
对于艺术家而言让科技透明且清楚的呈现是很重要的，包括故障发生的可能性。
Clearly indicate each link's destination. Keep navigation structures and nomenclature visible, rather than hiding them until the user has triggered an event (such as a mouse over).
明确标示每个链接的目标。保持导航结构和命名的可见性，而不要隐藏它们，不要直到用户触发一个事件(比如鼠标移过)才显示。
To keep the viewport performance I deleted grass from the parts that would not be visible in the rendered perspective.
为了保持背景图效果，我删除了部分草地，这在渲染透视中是看不到的。
All the objects in the scene affect the size of the bounding volume so try to keep them all within the visible bounds of the scene.
场景里的所有物体影响包围体积的大小，请让你的所有物体保持在场景可视范围内。
Reflective elements keep you visible in low-light conditions.
反光元素，让你在低光照条件下可见。
Where alpha-testing cannot be avoided, you should keep the overall number of visible alpha-tested pixels to a minimum.
alpha测试无法避免的，你应该保持整体可见alpha 测试的像素数目减少到最低。
Is it ok to keep multiple child view controllers associated with a parent UIViewController even when their views are not visible?
可以保持多个孩子与父母处理相关的视图控制器即使他们的意见是不可见的？
As you keep panning out, a shoreline becomes visible, and just offshore sits a battleship.
继续拉远镜头，可以看到海岸线了，海面上停着一艘战列舰。
Keep the diffusion of smoke into the atmosphere to the earth's temperature rise, visible to the earth is impossible in the short term the fever.
不断向大气扩散的烟使到地球体温升高，可见得地球是不可能在短期内退烧的了。
For this purpose, the filling groove (34) is preferably structured to cause the sealed ring (33) to keep existed and visible.
为此，填充槽(34)优选构造成使得尽管存在密封环(33)也保持可见。
In this view, you keep the broader context visible, which can sometimes be helpful.
在此视图中，您会看到范围更广的上下文，有时这会很有用。
In this view, you keep the broader context visible, which can sometimes be helpful.
在此视图中，您会看到范围更广的上下文，有时这会很有用。
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