1、Press the seam open and carefully align the underlay before pinning the right sides together.
正面合在一起之前，先將縫線燙開并仔細地將縫的粗縫線。

2、Objective To explore Hydrogels underlay in preventing bed sore of orthopaedic surgery patient.
目的探討水凝膠墊在預防骨科手術(shù)患者壓瘡的護理。

3、You can get just a simple plastic underlay sheet and that would provide adequate protection.
你可以只要簡單地將塑料墊板、提供足夠的保護。

4、For curved slot seams, both sides of the seam must be faced and underlay follows the same curve.
弧形嵌條縫，縫的兩邊必須對稱，墊層的弧度相等。

5、As an additional safeguard against weeds you can always use an underlay of heavy duty polyethylene.
作為另外一種預防雜草的防護措施，你可以一直使用一層厚重耐磨的聚乙烯底墊。

underlay翻譯

vt. 把...置于另一物之下, 墊起, 從下面支撐vi. (礦脈)傾斜n. 放在下面的東西, 襯底, 支撐之物, 襯墊物underlie的過去式 詳情