elementary substance

The sulfur residue contains 61.06 % of sulfur , most of which exist as elementary substance ( 80 % ) a little exist as compound .

通过对该硫磺渣进行X射线衍射和化学分析表明，元素硫的总含量为61.06%，大部分以单质的形式存在（占总硫80%以上），少量以金属硫化物、硫酸盐的形式存在。

Secondly , the enthalpy of elementary substance under standard state is defined as the criterion of component enthalpy , thus reaction heat is no longer needed in energy balance .

其次，热量衡算时，将标准状态下单质的焓定义为所有组分的基准焓，不再需要反应热数据。

Elementary Substance Material Control And Management Of Slip Form Construction In Cement Concrete Road Surface

水泥砼路面滑模施工单质材料控制与管理

Tin is an elementary substance .

锡是一种元素物质。

Beijing Opera is merged many elementary substance , which including dance , acrobatics and Wushu , music and singing , color and rhythm .

京剧艺术融合了多样的语汇：从舞蹈、杂技到武术，从音乐到唱腔，从色彩到节奏。

As an important part of business management in a manufacturing company , spare parts are the elementary substance in machine maintenance activity making up of majority part of manufacturing cost .

零备件管理是制造业生产维修管理的重要环节，是开展维修工作的物质基础，同时又是企业制造成本的主要部分，但往往又是容易被忽视的部分。

Aluminum phosphate firstly transforms to calcium phosphate and then vaporized . Phosphorus is speculated mainly in the form of elementary substance in syngas .

磷酸铝中磷主要通过转化为磷酸钙-磷后挥发。

Elementary substance and mercury salt nano-materials have excellent performances and can be used in electromagnetic components , electro-optical equipment , electrochemical , catalytic materials , biochemical analysis , bionic engineering .

汞盐和单质纳米材料具有优良的光电性能，在电磁元器件、电-光设备、电化学、催化材料、生化分析、仿生工程等多方面有着广泛的应用前景。