These youngsters had low supplies of heavy elements-for example, their oxygen content was only 20 percent of the sun's.
这些年轻的恒星提供的重元素很少——例如，它们的含氧量仅为太阳的20%。
Comparison with EAF dust at carbon and low alloy steel works, the EAF dust at stainless steel works contains more alloy elements but zinc content is lower.
与普碳钢或低合金钢厂电弧炉烟尘比较，不锈钢电弧炉烟尘含有更多的合金元素，但锌含量较低。
The low content of alloying elements (Mo, V) and tempering insufficiency of parts also affect the generation of the crack. Preventive measures are proposed to decrease or eliminate the crack.
合金元素钼、钒含量偏低，工件热处理回火不充分也会影响到裂纹的产生，并提出了相应的预防措施。
All glass elements in the lower two floors and the rainscreen glazing in the storeys above consist of clear glass with a low iron oxide content;
所有一二层的玻璃元素和上层的雨搭玻璃都由具有氧化铁的透明玻璃组成；
The influence of carbon on microstructure and mechanical property of low-carbon martensite steel was studied by fixing the content of other elements and regulating the content of carbon.
通过固定其它元素的含量，调整碳含量的方式，研究了碳含量对马氏体钢显微组织和力学性能的影响。
However, during the period of circulation use of scrap steel, it causes the content increase unceasingly of the low melting point metallic elements such as Pb in the steel.
但在废钢的循环使用过程中，不可避免地将铅等低熔点金属带入到炼钢炉中。
However, during the period of circulation use of scrap steel, it causes the content increase unceasingly of the low melting point metallic elements such as Pb in the steel.
但在废钢的循环使用过程中，不可避免地将铅等低熔点金属带入到炼钢炉中。
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