navigation elements meaning in English

导航参数

Seven of the 25 used left and top navigation elements
25个中的7个既在上部导航，又在左边导航。
Gets the style properties for the next and previous month navigation elements
获取下个月和上个月导航元素的样式属性。
Control displays the next and previous month navigation elements in the title section
控件是否在标题部分显示下个月和上个月导航元素。
Gets or sets the format of the next and previous month navigation elements in the title section of the
控件的标题部分中下个月和上个月导航元素的格式。
The design and navigation elements take up about a third of a window , and you should leave a bit of room for white space ( you don ' t want to overwhelm the customer )
设计和导航条部分要占据窗口三分之的空间，此外你还要留些空白（你可不想客户被满满一页内容搞得头晕吧）。