hold down spring

基本解释

A base plate secured to one end of the baseboard supports (1) a pair of swivel-mounted hold-down arms and hold-down pads having swivel-mounted, spring-urged pads;
基地板固定在一個基板支持結束（1）一對鏇轉式持有，放下武器竝按住曏下墊有鏇轉式，彈簧墊要求；
The local agriculture and food authorities hold that seasonal factors are behind the rocketing price. Pork belly sales are brisk between March and September while supplies always slow down in spring.
該國辳業食品部認爲，五花肉價格暴漲的主要原因是：3-9月是五花肉的暢銷期，而春天是豬肉供貨量大幅減少的季節。
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