保护剂

Alcohol is used as a preservative in certain food s.

酒精用作某些食物的保护剂。

A mathematical model was established to describe the freezing process of cells. The model includes the transportation of water and cryoprotectant across the membrane, the formation of intracellular ice and the growth of ice crystal.

建立了细胞冷冻过程的数学模型，该模型包括描述水和低温保护剂输运的方程、描述胞内冰晶形成的方程和描述冰晶生长的方程。

ColorX – ColorX is Meguiar's newest addition to the Cleaner/Wax family. ColorX is like Meguiar's traditional Cleaner/Wax,(A-1216), on steroids. It's more effective at cleaning glected finishes, restoring optimum clarity and leaving behind an incredibly long lasting synthetic polymer paint protectant than Meguiar's Cleaner/Wax,(A-12), without having to resort to harsh abrasives and without giving up the kind of stellar results you have come to expect from Meguiar's products. ColorX can be applied by hand, dual-action polisher and orbital buffers.

ColorX – ColorX是美克拉清洁蜡家族最新增加的成员，ColorX是非常类似于传统的清洁蜡(A-1216)，它在清洁受损烤漆上是更有效力的，除了恢復烤漆最佳的透明度之外并可在漆面留下一层比美克拉清洁蜡(A-12)还耐久的合成聚合物漆面保护剂，不需依靠粗糙的研磨成分，且不放弃你已经期望可从美克拉產品上获得成果的本质，ColorX可以使用手、震抛机和打蜡机来施用。

This paper introduced the kinds,the constitution of hyophilized heat-resisting protector of vaccines,and the application in vaccines for animals.

耐热冻干保护剂的组成和配方对冻干活疫苗的质量起着重要作用。

To isolate spermotogonia using two combinatorial enzyme three step wises digest the testicular tissues from 19 d-old-embryo after hatching,the cryopreserve effect of dimethylsulphoxide,glycerol and ethylene glycol cryoprotectants,each at(5%,10%,and 15%) concentration on the 19 d chicken embryonic SSCs was compared with fast freeze method.

采用二酶3步法获取孵化第19 d的鸡胚精原干细胞，比较在快速冷冻条件下3种冷冻保护剂(DMSO、乙二醇、甘油)在3个浓度5%、10%、15%条件下对鸡胚精原干细胞的冷冻保存效果进行研究。

Whether the requirement is based on strict hygiene (milk beverages, pharmaceuticals or skin care), an extreme filling accuracy (plant protectors, perfumes, lubricants, concentrates), an explosion proof configuration (solvents. chemicals, paints), or multiple cleanings and container size change over in the same day (detergents, sauces and condiments), Serac will always find the matching solution.

可灌装的产品范围也在不断扩大，无论要求符合严格卫生等级要求的产品(如牛奶，饮料，药品或护肤品)还是要求极高精度的填装(植物保护剂、香水、润滑剂)，亦或易燃易爆的危险品(溶剂，化学制剂，油漆)，还是需要经常更换容器、需要多次清洗的物品(洗涤剂、调味汁和调味品)， Serac 总能给您匹配的解决方案。

In order to study the influence of preparation techniques on stability of different morphological silver colloid s, stable silver colloid s were produced by the reduction of AgNO3 with the protection of polyvinylpyrroli-done using KBH4 and N2H4 ----------- H2O as reductants.

为了研究制备工艺条件对不同形貌银胶体稳定性的影响，在超声场作用下，以AgNO3为前驱物，聚乙烯吡咯烷酮为保护剂，KBH4和N2H4·H2O分别为还原剂，制备了稳定的银胶体，并利用透射电镜和分光光度技术对制备的银胶体进行了表征。

Results The mixture of 3 % mannitol and 3 % sucrose could better prevent nanoparticles from aggregating, the optimal lyophilization process was followed: precooled at –45 ℃ for 12 h; primary drying at –35 ℃ for 1 h; secondary drying at –20 ℃ for 12 h; finally drying at 10 ℃ for 3 h.

结果 处方中加入质量分数为3 %的甘露醇水溶液和质量分数为3 %的蔗糖水溶液作为保护剂可以较好防止纳米粒的聚集，优化的冻干工艺为-45 ℃预冻12 h，升温至-35 ℃维持1 h，再升温至-20 ℃维持12 h，最后升温至10 ℃维持3 h。

However,the freeze-drying process provides a new way to solve this problem. The process was conducted the way a sample is precooled to-30℃,and the shelf temperature during primary drying is set to-30℃,which during secondary drying is set to 15℃.The time required for the whole freeze-drying process is a...

将样品预冻到-35℃后，一次干燥时搁板温度控制在-30℃，二次干燥时搁板温度控制在+15℃，整个冻干过程在25小时的工艺下，通过改变脐带血中冻干保护剂组分及浓度，比较冷冻干燥后有核细胞的恢复率，得出恢复率最高(68.397%)的配方(40%PVP+30%海藻糖+10%甘露醇)，并比较了细胞冻干前后的形态，然后将样本在常温下放置三周后进行了P I染色活性检测(89.08%)。

Methods Live attenuated rubella vaccine virus strain RA27/3 was inoculated to the monolayer of human diploid MRC-5 cells at an appropriate MOI and incubated in serum-and protein-free CDM culture medium. The virus liquid was harvested and, after addition of polyvinylpyrrolidone as a stabilizer and protective agent, lyophilized. Perform overall control tests on the prepared vaccine.

将风疹减毒活疫苗毒种RA27/3株按适当比例接种单层人二倍体细胞MRC-5株，使用无血清、无蛋白的CDM培养基培养病毒，收获病毒液，加入聚乙烯吡咯烷酮作为病毒稳定剂，制备疫苗原液，加入冻干保护剂，制备5批冻干疫苗，进行各项检定。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。