Either expand to an IfExpr to special-case the non-numbers or use number() to force explicit conversions and obtain NaN as under 1.0.
或者扩展IfExpr引入非数字的特殊情况，或者像 1.0 那样使用number()强制显式转换得到NaN。
Many routines designed to read floats may allow values such as "NaN" (not a number).
许多设计用来读取浮点数的例程可能会允许“NaN”(非数字)这样的值。
Ji 'nan hinge guardrail (or slide window hinge, handle, conflict) between sash and frame sealant is to ensure the quality of the flat open fence as the main accessories.
济南护栏的合页(或滑撑窗冲突铰链)、执手、框扇间的密封胶条是确保平开护栏网质量最为主要的配件。
Liu Spring Ji Nan is honored as"spring city"because there are many big and small springs everywhere.
《刘氏泉》 济南被誉为“泉城”，是因为市内各处都有很多大小泉眼。
Sun Nan is known as a pop singer.
孙楠作为一名流行歌手而出名。
Sun Nan is known as pop singer.
孙楠作为一名流行歌手而出名。
The poem Melancholy as a different case in Nan Xing s poems indicates the breakout from the world inside the Yard.
而作为这一时期诗歌创作特例的《沉忧》则象征着对“庭院内的世界”的突围。
FASTEST software package developed by Automation Research Institute (Nan Jing Nan Rui Group Co. ltd. ) of National Power Cooperation is used as main tool in this subject research.
本课题中采用国家电力公司电力自动化研究院（南京南瑞集团公司）开发的FASTEST软件包为主要工具。
A lot of trees, Ji 'nan garden landscape can be placed such as palm, palm trees is the alias, then has ornamental function also have enrichment, not let the loss of wealth.
济南庭院景观可以摆放的树木很多，比如棕榈，别名棕树，那么这个树木就是既具有观赏的作用也有聚财，不让财运流失的作用。
Using the Ding-Ling Cooperatives' joss paper mill in Nan-ton County as an example, this paper details some aspect of wastewater processing of joss paper mills.
本文以南投县竹山镇顶林合作社所设之信仰纸厂为例探讨此类纸浆厂污水处理之一些问题。
Nan 'ao County, was recently approved as a national demonstration bases Technology and the Sea.
近期南澳县被国家批准为科技兴海示范基地。
Such a situation for the rich as well as the status of people who are very unhappy, but also very taboo, so we have to learn about the design of Ji 'nan courtyard landscape Feng shui.
这样一个情况对于有钱人以及有地位的人来说是非常不如意的，也是非常忌讳的，所以我们更要学习一下济南庭院景观的设计风水。
很可能甚至老奶妈也是。
Ji 'nan Hengtong Co. workers to remind the user of the product manufacturers, with strong acid, strong alkali, heavy metal ions (such as aluminum, zinc, mercury, silver, iron, etc.) and is taboo.
济南恒通护工有限公司厂家提醒用户，本品与强酸、强碱、重金属离子(如铝、锌、汞、银、铁等)配伍均属禁忌。
In Ji 'nan steel housing area, polystyrene foam is often used as a fill color steel sandwich panel in the he has the advantages of light weight, cheap price, good sound insulation, heat insulation.
在济南彩钢板房的领域，聚苯乙烯泡沫常常被用作彩钢夹芯板里的填充物，他具有质量轻，价格便宜，隔音，隔热好的特点。
Secondly, if the Ji 'nan steel housing is made of polystyrene sandwich board so as to pay attention to the fire.
其次，济南彩钢板房假如是选用聚苯乙烯作夹芯板那么就要留意防火。
Taking small watershed as an unit in Nan 'an of Fujian, the archives system establishment of grass roots for soil and water conservation had been researched.
在福建省南安市，以小流域为单元对基层水土保持档案系统建设进行了研究。
LED is a single direction of the light-emitting body, if there is a reverse current, then known as the leakage, the leakage current of Ji 'nan light emitting, short life, low price.
LED是单向导电的发光体，如果有反向电流，则称为漏电，漏电电流大的济南发光字，寿命短，价格低。
Taking the Jing-Jiu railway and Nan-Kun railway as examples, the attained standard of China railway engineering construction at present are elucidated.
以京九铁路及南昆铁路为例，阐述了我国铁路工程建设达到的水平；
Thus the outstanding characteristics displays as the "opening" learning idea and inasmuch reflects the essential aspect of Huai-nan Zi.
这种特征表现为“通”的观念，反映出《淮南子》的道家性质和时代特征。
Liu Nan is a demanding artist who untiringly pursues his personal quest for truth while he claims and lives up to his place in a veritable dynasty as the son and grandson of artists.
作为艺术家的儿子和孙子，刘楠是一位不懈追求艺术真谛、在创作和生活中找到自由王国和个人位置的真正艺术家。
Liu Nan is a demanding artist who untiringly pursues his personal quest for truth while he claims and lives up to his place in a veritable dynasty as the son and grandson of artists.
作为艺术家的儿子和孙子，刘楠是一位不懈追求艺术真谛、在创作和生活中找到自由王国和个人位置的真正艺术家。
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