例句與造句

1. Oily or greasy surfaces repel fluxes , leaving bare spots that oxide and result in voids and inclusions
   油脂表面會(huì)排斥焊料，留下氧化物裸點(diǎn)，并導(dǎo)致砂眼和雜物。
2. It's difficult to find greasy surface in a sentence. 用greasy surface造句挺難的