calcium base grease synthetic

例句：

1. 1. This newtype of engine oil is designed for use in engines with high temperatures and pressures.
   这种新型发动机油专为高温高压的发动机设计。
2. 2. The engineer used a calcium base grease to lubricate the gears.
   工程师使用一种钙基润滑脂来润滑齿轮。
3. 3.The manufacturer claims that their synthetic lubricant provides superior performance compared to traditional greases.
   制造商声称他们的合成润滑剂在性能上优于传统润滑脂。