“残余物”造句

煤被干馏后剩下固体残余物:焦炭.
Coal is destructively distilled leaving a solid residue, coke.

蔬菜在煮之前要浸泡以清除农药残余物.
Soak the vegetables to clear the remnant of pesticides before cooking.

无生代岩石中不包含有机残余物.
Azoic rocks don't contain organic remains.