例句與造句

1. Features a modular design concept which facilitates complete maintenance and assembly by retaining the spring load . first and second check valve spring modules are not interchangeable
   特點在于模塊設計概念，通過保持彈簧負載促使日常維護和總成的完善。第一和第二止回閥彈簧模塊不能互換。
2. It's difficult to find check valve spring in a sentence. 用check valve spring造句挺難的