| 1. | Horizontal mounting . when ordering , specify the catalog number and design description
硅橡胶应力锥性能可靠，安装便捷简单。 |
| 2. | Offers the advantage that it can provide fast lookup given , say , the book catalog number as the key
提供的优势是它能提供快速的查询，也就是说用图书目录编号作为键。 |
| 3. | Catalog numbers and references are given only as an indication of the quality of materials and workmanship to be used
目录编号和有关资料只是用于表明所采用的材料质量和工艺技术的水平。 |
| 4. | Most objects visible in small telescopes with either be in the " messier catalog " or the " new general catalog " , and will have catalog numbers starting in " m " or " ngc " respectively
大部分小望远镜可见的天体会出现在“梅西耶星表”或者“新通用星表”中，编号以“ m ”或者“ ngc ”开头。 |
| 5. | Most deep sky objects don ' t have a " popular name " - if we want to find them , we need to know their catalog number , or at least one of their catalog numbers , since most objects have several
大部分深空天体没有“常用名称” ，要找到它们，必须知道至少一个星表编号? ?大部分都有好几个。 |
| 6. | Types of materials and equipment specified by manufacturers ' names and catalog numbers in the specifications are intended to establish standards of quality and performance and not to limit competition
技术说明书中根据制造商名称和产品目录号所列明的材料和设备类型旨在建立质量和性能的标准并以免限制竞争。 |
| 7. | Designate the valve size and the complete catalog number , including prefix and suffix letters , when applicable , to identify regular cataloged items as described on the following pages
在订购时，请指定阀门通径和完整的产品规格型号，包括前缀和后缀，有关规格型号的含义请参阅下列网页中描述的常规项目及其说明。 |
