例句與造句

1. This behavior will be helpful to decrease temperature gradient and to lessen surface thermal stress of concrete structure so as to prevent cracking of a structure
   上述特性將有助于減小混凝土內(nèi)部溫度梯度，對于防止水工混凝土結(jié)構(gòu)表面裂縫起到良好的作用。
2. It's difficult to find decreasing temperature gradient in a sentence. 用decreasing temperature gradient造句挺難的