Vitamin K : this vitamin is essential for hepatic synthesis of clotting factor prothrombin.

Purpose To purify prothrombin simply and effectively from human plasma.

目的从人血浆中简便、快速、高效地提纯凝血酶原.

Prothrombin: Carbohydrate-protein compound in plasma essential to coagulation.

凝血原: 血浆中的一类碳水化合物糖蛋白,是凝血系统中的必要成分.

Lack of Vitamin K results in deficiency of prothrombin factor which causes hemorrhage after minor trauma.

缺乏维生素K会导致凝血酉每元不足并造成小创伤大出血的情况.

Most thallus plants are currently classified as complex protists.

大部分的原植体现在被归属为复杂的原生生物.

Living creatures are classified into plants, animals and protists.

生物体可分别归类为植物 、 动物及原生生物.

Photosynthesis occurs only in the chlorophyll-containing cells of green plants, algae and certain protists and bacteria.

光合作用只发生在含有叶绿素的绿色植物细胞, 海藻,某些原生动物和细菌之中.

When texts are available the term protohistory is often used.

在可以得到文献的情况下往往就使用有史考古学这个名词.

The proton and electron are certainly long-lived.

质子与电子当然可算长寿了.

The electron continues to whirl about the proton.

电子继续绕着质子转.

That particular equality, the proton-electron charge balance, is open to a very sensitive test.

质子和电子的电荷完全相等这一点, 很容易用很灵敏的实验来检验.

The production of massive protonema immediately follows and then caulonema, chloronema and secondary rhizoides.

孢子萌发后直接产生块状原丝体;块状原丝体上产生轴丝体 、 绿丝体和次生假根.

Recent developments and applications of protonic conductors with perovskite structure were summarized in the present paper.

简要介绍了钙钛矿型复合氧化物氢离子导体开发及应用研究现状和应用前景.

An atom normally contains equal numbers of electrons and protons.

原子在正常情况下含有数目相等的电子和质子.

The charges themselves in either case are those of electrons or protons.

任一种情况下,电荷就是电子或质子的电荷.

Atoms are made up of electrons and protons.

原子由电子和质子构成.

They use the protoplasm in the vat as an energy source.

他们把灵魂装到一个大桶里作为能量来源.

Others are associated with the protoplasm of the cell.

其它一些与细胞的细胞质有关.

Attempts have been made to construct protoplasm in the lab.

已多次尝试在实验室里构造原生质.

I know the protoplasm is the basis of all animals and plants.

我知道原生质是动物和植物的基础.

This modifiability is one of the intrinsic qualities of living protoplasm.

这种可变性是生命原生质固有的性质之一.