1.
Any of various natural metallic sulfide minerals, especially of iron.
硫化矿类一种自然金属硫化矿，尤指铁矿
2.
the alchemists were unable to accept the inconvertible nature of elemental metals.
炼金术士是不会接受自然金属不可变化的性质的。
3.
The metals which are of particular concern are those which have been shown to be methylated in nature.
人们特别关心那些在自然界能被甲基化的金属。
4.
Effect of Humic Acids on the Adsorption of Heavy Metals to Natural Surface Coatings;
腐殖酸对自然水体生物膜吸附重金属的影响
5.
Experimental Study of Natural Convective Heat Transfer in Horizontally-Positioned Cellular Metal Foams with Open Cells
通孔金属泡沫中的空气自然对流传热实验研究
6.
"It probably does not occur uncombined in nature But is found in natural alloys with other noble (i.e., chemically inactive or inert) metals."
自然界中可能不存在纯铱,通常和其它贵金属共生于天然合金中(化学活性不活跃或迟钝)。
7.
an metal or plastic part that is surgically implanted to replace a natural joint (possibly elbow or wrist but usually hip or knee).
通过外科手术移植的代替自然关节的金属或塑料制品。
8.
Wood rots, metal rusts, people wrinkle and flowers wither.
听其自然的话，木头会腐烂，金属会生锈，人脸会长出皱纹，花会凋谢；
9.
Characteristics of Distribution and Transport of Heavy Metals in Multi-phase System of Natural Waters
自然水体多相介质中重金属的分布及迁移转化特征
10.
Neither metal occurs naturally in Egypt, and it seems probable that supplies of ore were imported from Persia.
这两种金属都不是在埃及自然产生，而似乎可能矿石从波斯进口。
11.
Development and Application of Electrochemical Detecting Instrument on Metallic Material Corrosion in Environment;
金属材料自然环境电化学腐蚀检测仪器的研制及应用
12.
Research on the Intellectual Property of the Projects Sponsored by NSFC;
国家自然科学基金资助项目形成的知识产权归属问题研究
13.
Research on Corrosion Detection Technologies for Typical Metals and Coating System in Nature Environment
典型金属材料和涂层体系自然环境腐蚀检测技术研究
14.
Competitive Adsorption of Metal Cations onto Biofilms in the Multi-phase System of Natural Waterbody
自然水体多相体系中重金属离子在生物膜上的竞争吸附
15.
Experiment on Thermal Conductivity Enhancement for PCM Embedded in Metal Foam
自然对流对泡沫金属复合相变储能的影响实验研究
16.
of or relating to autogenesis.
属于或关于自然发生说。
17.
The nonmetal products have the advantages of healthiness, environmental protection . chemical stability and being acidproof and acidoxidation.
健康环保，自然美观。产品属于非金属类产品，耐酸耐氧化，化学稳定性好。
18.
all the tinsel of self-promotion.
自我提升的全部金属箔。