blade

英 [bleɪd]

美 [bleɪd]

n. 刀身; 刀片; 刀刃; (机器上旋转的)叶片; 桨叶; (船桨的)桨叶，桨身

复数：blades　过去式：bladed　

Oxford 3000 / Collins.2 / BNC.4000 / COCA.3148

牛津词典

noun

刀身；刀片；刀刃
the flat part of a knife, tool or machine, which has a sharp edge or edges for cutting
（机器上旋转的）叶片；桨叶
one of the flat parts that turn around in an engine or on a helicopter
1. the blades of a propeller
  螺旋桨叶
2. rotor blades on a helicopter
  直升机的旋翼
（船桨的）桨叶，桨身
the flat wide part of an oar (= one of the long poles that are used to row a boat) that goes in the water
（草的）叶片
a single flat leaf of grass
（溜冰鞋的）冰刀
the flat metal part on the bottom of an ice skate

N-COUNT 刃；锋
Thebladeof a knife, axe, or saw is the edge, which is used for cutting.
1. Many of these tools have sharp blades, so be careful.
  这些工具中很多都有锋利的刀片，务必小心。
（螺旋桨的）叶片
Thebladesof a propeller are the long, flat parts that turn round.
桨叶
Thebladeof an oar is the thin flat part that you put into the water.
（草的）叶片
Abladeof grass is a single piece of grass.
See also:razor blade shoulder blade. rotor blade

noun

the flat part of a tool or weapon that (usually) has a cutting edge
flat surface that rotates and pushes against air or water
Synonym:vane
the part of the skate that slides on the ice
a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard
Synonym:swordbrandsteel
a broad flat body part (as of the shoulder or tongue)
a cut of beef from the shoulder blade
something long and thin resembling a blade of grass
1. a blade of lint on his suit
a dashing young man
1. gay young blades bragged of their amorous adventures
especially a leaf of grass or the broad portion of a leaf as distinct from the petiole
Synonym:leaf blade

To forge a blade takes great skill.
锻造刀刃需要很高超的技巧。
Many of these tools have sharp blades, so be careful.
这些工具中很多都有锋利的刀片，务必小心。
A sharp blade is likely to nick the skin and draw blood
锋利的刀刃可能会划伤皮肤，导致出血。
Complete leaf composed of petiole, blade and stipule.
完全叶由叶柄、叶片和托叶组成。
A bayonet blade is forged from the finest steel.
刺刀刃是用最优质的钢锻造的。
The propeller blade has been mounted.
推进器的叶片已经安装好了。
Not a flower nor even a blade of grass will grow in this desert.
没有一朵花甚至一片草将会生长在这沙漠里。
The blade of the oar had entangled itself with something in the water.
船桨的桨叶和水里的什么东西缠住了。
The soil sticks to the blade and blocks the plough
土粘在犁铧上，卡住了犁。
This thesis aims at developing a model and calculation method of rigidity, strength and vibration of the blade.
本文目的就是要建立一套适合于水轮机转轮叶片刚强度与振动的分析模型和计算方法。