中文翻译与英英解释| Didymium () is a mixture of the elements praseodymium and neodymium. It is used in safety glasses for glassblowing and blacksmithing, especially when a gas (propane) powered forge is used, where it provides a filter which selectively blocks the yellowish light at 589 nm emitted by the hot sodium in the glass, without having a detrimental effect on general vision, unlike dark welder's glasses. |
例句与用法 | 1. | The appearance and structure of 7 species of physarales which have been grown in culture , including didymium iridis , are resemble . the plasmodium has a small colorless flatten aspect and a more or less round outline
实验室培养的绒泡菌目七种黏菌的原质团，包括钙皮菌科的黄柄钙皮菌，发育初期均具有相似的形态和结构。
| | 2. | Unfortunately , there was still light pollution although technology was improved many times . to ensure environment protection , wanbao company decided to remove all the old product lines and reinstall the product lines of oxide electrolysis . the total set is 30 , and equipped with two 25kg vacuum induce stoves , the yield is 1400 mt per year . the main production are low - zinc low - magnesium lanthanum metal , low - zinc low - magnesium mischmetall , neodymium metal , didymium metal , yttrium metal , dysprosium metal etc
多年来，万宝公司一直从事氯化物电解生产，虽经多次环保治理，仍有一定污染，为确保绿色环保生产，公司决定将原有生产线拆除，全部改装成氧化物电解生产，总台数为30台，年产量为1400吨，同时配备两台25kg真空感应炉。主要生产低锌低镁金属镧低锌低镁混合稀土金属金属钕镨钕金属
|
|