当温度达到熔点时, 金属就变成液体流出,并注入特殊的铸模中.When the temperature reaches melting point, the metal runs off as a liquid and flows into special modules.把熔化的金属倒入铸模。The molten metal is poured into the mould.将混合物注入已预热到同样温度的铸模内.The mixture ...
他把手伸进身边的纸板盒里。He reached into the cardboard box beside him.他们的纸板盒用蜡线扎得整整齐齐.Their cardboard boxes were wrapped and tied neatly with waxed twine.我们要求用双层的纸板盒送达时却是单层的纸板盒.We asked for a double carton, but it came in a single...