preformed

英式音标：['pri:'fɔ:md]播放读音

美式音标：['pri'fɔmd]播放读音

概况：

adj. 预成型的，预制成的

v. 预先形成（preform的过去分词）

词义：

adj.

预成型的，预制成的；

v.

预先形成( preform的过去式和过去分词 )；

英英释义

preform[ 'pri:'fɔ:md ]

v.

form into a shape resembling the final, desired one

form or shape beforehand or determine the shape of beforehand

用法：

权威例句

Preformed Antimicrobial Compounds and Plant Defense against Fungal Attack

Preformed structural elements feature in partner recognition by intrinsically unstructured proteins.

Crystallographic Evidence for Preformed Dimers of Erythropoietin Receptor Before Ligand Activation

Guidance of optic axons in vivo by a preformed adhesive pathway on neuroepithelial endfeet.

Migration and proliferation of endothelial cells in preformed and newly formed blood vessels during tumor angiogenesis

Release of both preformed and newly synthesized tumor necrosis factor alpha (TNF-alpha)/cachectin by mouse mast cells stimulated via...

The generation of memory cells. II. Generation of B memory cells with preformed antigen-antibody complexes

Maturation of the head of bacteriophage T4 ☆ ☆☆ : III. DNA packaging into preformed heads

Preparation techniques and mechanisms of formation of biodegradable nanoparticles from preformed polymers

Resident Cardiac Mast Cells Degranulate and Release Preformed TNF-伪, Initiating the Cytokine Cascade in Experimental Canine Myocard...

英语词源：

preformed (adj.)

c. 1600, from Latin praeformare or else from pre- + formed (see form (v.)). Of plastic and synthetic products, from 1918.

造句：

1. They preformed meritorious deeds in the fight to defend the frontiers of our motherland.

他们在保卫祖国边疆的战斗中立了功。

-- 来源 -- 英汉 - 短句参考

2. preformed adduct

预制加合物

-- 来源 -- 英汉 - 翻译参考[网络]

3. preformed joint

预制[塑]缝

-- 来源 -- 英汉 - 短句参考

4. Preformed armour rods

GB/T2337-1985预绞丝

-- 来源 -- 英汉 - 翻译参考[网络]

5. preformed wire rope

预成型钢索

-- 来源 -- 英汉 - 短句参考

6. preformed joint filler

预塑式嵌缝板, 预制填缝料

-- 来源 -- 英汉 - 短句参考

7. The colorimetric methods involve the bleaching of a preformed color by the fluoride ion.

比色法涉及氟离子对预先形成的颜色的消色作用。

-- 来源 -- 英汉 - 辞典例句

8. The theory that an individual is developed by successive differentiation of an unstructured egg rather than by a simple enlarging of a preformed entity.

渐成说一种以为个体是由一个没有组织的卵子经过连续变异生长而成，而非一个整体简单扩张形成的理论

-- 来源 -- 英汉 - 短句参考

9. They mistakenly thought that the sperm cell contained a miniature preformed human Being that grew when it was deposited in the female genital tract.

他们误以为精子细胞在女性外生殖器着床时就已经内含缩小的人体。

-- 来源 -- 英汉 - 翻译样例 - 社会

10. preformed antibody

预成抗体

-- 来源 -- 英汉 - 翻译参考[网络]