例句與造句

1. The burn rate modifiers in the mixture may be an alkaline metal nitrate ( NO 3-) or nitrite ( NO 2-), dicyanamide or its salts, sodium borohydride ( NaBH 4 ), etc . The coolants and slag formers may be e . g . clay, silica, alumina, glass, etc . Other alternatives are e . g . nitrocellulose based propellants ( which have high gas yield but bad storage stability, and their oxygen balance requires secondary oxidation of the reaction products to avoid buildup of carbon monoxide ), or high-oxygen nitrogen-free organic compounds with inorganic oxidizers ( e . g ., di or tricarboxylic acids with chlorates ( ClO 3-) or perchlorates ( ClO 4-) and eventually metallic oxides; the nitrogen-free formulation avoids formation of toxic nitrogen oxides ).
2. It's difficult to find inorganic oxidizer in a sentence. 用inorganic oxidizer造句挺難的