snap fastener [机] 按扣 ; 急钮 ; 四合扣 ; 揿钮
Snap Fastener Closure 按扣式文件袋
Snap fastener face diameter 纽扣面径
snap fastener m 钉急钮机
plastic snap fastener 塑料四合扣
Def snap or fastener 急钮有问题
同义词： snap snap fastener press stud
以上来源于: WordNet
N-COUNT A snap fastener is the same as a . 同press stud [美国英语]
An inadequately torqued fastener can vibrate or work loose; conversely, if the tension is too high, the fastener can snap or strip its threads.
一个不适当的扭矩紧固件可能会振动或松掉，相反，如果张力过高，紧固件可能会拉断或剥掉其连线。
Loess, stone, cotton & plastic snap fastener.
黄土，石头，棉，塑料按扣。
Side pocket with a snap fastener can be opened and closed easily to get credit cards. Large bills pocket with a zipper give you fully sense of security.
分层式构造，侧袋采用可开合按扣，方便取用银行卡和信用卡，大钞位则为拉链袋设计，给您十足的安全感。
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