直接利用物质：direct use material 直接和间接能量转换：direct and indirect energy conversion ..
双语例句
1
Sweater, knitted material of this kind of clothes, if the directuse of iron to burn tissue destroying elasticity, the steam electric iron spray in folds.
毛衣，针织质料这一类的衣服，如果直接用熨斗去烫会破坏组织的弹性，这时候最好用蒸气熨斗喷在皱褶处。
2
The material used for solder pot, particularly for the part with a tight contact with flow solder, should avoid directuse of stainless steel.
锡炉材料特别是与流动钎料接触比较紧密的部分应尽量避免直接使用不锈钢材料。
3
By use of copper ash as raw material, a new method for direct production of cuprous chloride is introduced. The process conditions affecting on recovery of cuprous chloride are discussed.