To fold or double(something or oneself)like a jackknife.
折叠折刀似的折拢或折叠（某物或其自身）
It’s a penknife, scissors, corkscrew all rolled into one.
这集小折刀、剪刀和螺丝起子于一身。
A good jackknife is often of service to a camper.
一把折刀对于露营人很有用。
and began to dig under one end of it with his Barlow knife.
开始用他的巴露折刀在一头开挖起来。
The boy is too young to shut a clasp-knife.
小男孩太小,还合不上折刀。
Application approach on pronation clasp knife position in patients undergoing analenteral surgery
俯卧折刀位在肛肠手术中的应用探讨
A small knife with blades or a blade that can fold into the handle when not in use.
小折刀，小刀一种有几个刃或一个刃的小刀，不用时可折起来收进柄内
dive into the water bending the body at the waist at a right angle, like a jackknife.
跳入水中前弯身的一种跳水方法，像大折刀一样。
At the time of folding, the knife will push the thread into the fold. After gathering, heat is applied to melt the trimming and forwarding.
折页时，折刀把线推入折口。集帖后，加热把线融化，粘牢各书帖，然后裁边及作进一步加工。
Pulling out the blade of his pocketknife with his teeth, Brown chipped away at the frozen snow out the air intake.
布朗用牙把小折刀的刀身拉出来，然后把封住进气道的冰冻的积雪刮掉。
Combination folder: A machine combining a knife and buckle folder.
混合式折纸机:结合刀式折和栅栏式折的折纸机。
a pocketknife with a spring-operated blade.
有弹簧折叠刃片的小刀。
pruning knife whether or not folding
修枝刀,不管能否折叠
budding or grafting folding knife
芽接刀或切接切,可折叠
a large knife with one or more folding blades.
有一个或多个可以折叠的刀刃的大刀。
non-folding table knife with cutting blade whether or not serrated, of base meta
餐刀,非折叠,有刀刃不论是否有锯齿形,贱金属制
a knife with a blade that folds into the handle; suitable for carrying in the pocket.
有可以折在手中的刀刃的刀；适合放在口袋里。
combined buckle and knife folding machine
栅栏式和侧刀式联合折页机