Is Hell exothermic ( gives off heat ) or endothermic ( absorbs heat )?地狱是散 发热量 还是吸收热量?A household radiator absorbs energy in the form of electric current and releases it in the form of heat.家用取暖器吸收电流能量，再以热量的形式释放出来。The mo...
The Na - Dene language is spoken by the Tlingit people.特灵吉人说的赫胥语.I am saved western the advantage requirement that has development sanded industry dene.我省西部沙地具有发展沙产业的优势条件....
表示某人没义务做某事.State some body is under an obligation to do something.询问你是否不义务做某事.Asking if you are under an obligation to do something.有义务(做某事 )Be in duty bound to do sth....
Seamless pipe production process, there are two: Cross - rolling method ( Meng Mannesmann France ) and the extrusion method.无缝管的生产工艺有两种: 斜轧法 ( 孟内斯曼法 ) 和挤压法....