1.
Molluscicidal effect of qiangluosha powder in the large field
现场大面积强螺杀粉剂杀灭钉螺效果
2.
Objective To explore the molluscieidal effect of Areca catechu on Oncomelania hupen-sis.
目的观察槟榔提取物杀灭钉螺的效果。
3.
Mollusicidal effect and toxicity to fish with META-Li in field
密达利杀灭山丘钉螺效果和鱼毒试验
4.
"Protecting peaches and controlling snails" in peach gardens with re-emerging snails and its effectiveness at control
钉螺复燃水垛上桃园地“保桃灭螺”措施及效果
5.
To clinch(a bolt, for example).
钉牢（例如螺丝钉）
6.
The study of the toxic effect of Rumex japonicum Houtt and of EST isoenzymes in Oncomelania hupensis
药用植物羊蹄的灭螺作用及对钉螺酯酶同工酶影响初探
7.
Experiement Study on Development of L.heterophyllus Granule Medicine and Effect of Poisoning Oncomelania hupensis
益母草颗粒灭螺剂的研制及对钉螺毒杀效果的实验研究
8.
spiral part of a screw
（螺钉的）螺旋部分.
9.
A nail, screw, or bolt for clinching.
铆钉用于固定的钉子、螺丝或螺丝钉
10.
to screw a lock on a door
用螺丝钉把锁钉在门上
11.
A screw is stronger than a nail.
螺丝钉比钉子牢固。
12.
Tapping screws thread
GB/T5280-1985自攻螺钉用螺纹
13.
remove the thread (of screws).
去掉（螺丝钉的）螺纹。
14.
Screws that modify force and motion are known as power screws.
变换力和运动的螺钉为力螺钉。
15.
A tool for clinching nails, screws, or bolts.
紧钳固定钉子、螺丝或螺丝钉的工具
16.
" Bolts, screws, nuts and accessories--Terminology and nomenclature"
GB/T3099-1982螺栓、螺钉、螺母及附件名词术语
17.
" Tolerances for fasteners--Bolts, screws and nuts"
GB/T3103.1-1982紧固件公差螺栓、螺钉和螺母
18.
Plastic diamond knurlhead screws
GB/T840-1988塑料滚花头螺钉