The stable low-temperature form of sulfur is rhombic sulfur . 硫的低温稳定态为正交硫。
The hydrides are then decomposed in a low-temperature flame . 然后氢化物在低温火焰中分解。
To meet this requirement, low-temperature chambers or furnaces are often built to provide the needed range of temperature . 为了适应这种要求,常常修建低温箱或加热炉来提供所需的温度范围。
Weld and heat treatment of 3 . 5ni low - temperature steel tower 低温钢塔的焊接及热处理
Seamless steel tubes for low - temperature - service piping 低温管道用无缝钢管