查询词典 freeze

In hot weather, the cows often collapse in the heat, and in the cold, cows sometimes freeze to the side of the truck and workers pry them off with crowbars.

在热天，奶牛经常因太热而虚脱；在冷天，奶牛经常冻得粘在卡车内壁上，而工人们就用铁撬将它们从车壁上硬行拉离。

The present invention is characterized in that the ammonium metatungstate powders and the cobltic-nitrate powders are respectively dissolved in the water and scattered in the liquid nitrogen to be pre-frozen using a nitrogen spray gun after being mixed and defecated, and then are placed in a freezedryer to be dried vacuumly and finally the powders are obtained. The nanometer powder i.e. the nano tungsten-cobalt composite powder is obtained by reducing the freeze-dried mixed powder in the atmosphere of hydrogen.

该微晶硬质合金的制备方法特征为：将偏钨酸铵粉末与硝酸高钴粉末分别溶于水中，混合澄清后使用氮气喷枪，将其分散在液氮中预冻后置于冻干机中进行真空干燥得到粉末；在氢气气氛中对冻干的混合粉末进行还原得到纳米粉体，即钨钴纳米复合粉体。

Vacuum freeze-dry technology is a new and high technology on agricultural product dehydrating dry.

真空冷冻干燥是在农产品加工中应用的高新干燥技术，特别是在我国已进入国际世贸组织和农业经济结构重大调整之下，研究和应用该项技术具有重要的现实意义。

OBJECTIVE To investigate the feasibility of freeze-dried demineralized bone matrix as scaffold material in bone tissue engineering.

目的 探索冻干脱钙骨基质作为组织工程骨支架的可行性。

Soil erosion is defined as the course of destroying, denudating, moving and depositing of soil and other substances on the ground, under the actions of hydraulic forces, wind, gravity and freeze-thaw.

土壤侵蚀是指在水力、风力、重力、冻融以及其它外营力作用下土壤、土壤母质及其它地面组成物质如岩屑、松散岩层等，被破坏、剥蚀、运转、沉积的过程。

Then the crude products were dissolved, centrifuged, dialyzed and freeze drying to prepare pure collagen type I.

［目的］比较从4种生物原料中制备高纯度I型胶原，以满足骨组织工程应用的需要。

The n the crude products were dissolved, centrifuged, dialyzed and freeze drying to prepare pure collagen type I.

［目的］比较从4种生物原料中制备高纯度I型胶原，以满足骨组织工程应用的需要。

The steps were as follows: Acquiring superant from the culture medium by centrifugation, discarding waste residue by filtration, concentrating by hollow-fiber membrane, treating with salting-out, dialyzing the product of salting-out, treating the dialysate by vaccum freeze dryer, dissolving solid , using the method of gel filtration chromatography with Sephadex G-100/G-75, and proof-test by filter-paper chromatography ,then preparation by thin-layer chromatography was carried out.

建立了分离纯化该物质的有效途径：发酵液离心除菌→抽滤除杂→中空纤维过滤浓缩→盐析→透析→真空冷冻干燥→溶解→交联葡聚糖凝胶Sephadex G-100凝胶分离→交联葡聚糖凝胶Sephadex G-75凝胶分离→纸层析检验→薄层层析制备。

We can freeze human sperm and embryos for future use.

我们可以把人类的精子和胚胎冷冻起来在将来使用。

They have many merits such as:good sanitation and general mechanical physics plenty intensi-on mechanics theory,no welding and no gap,once moulding,twice plunge material,enduing acid,alkall,collision,high temperature and freeze,safe and handy installat-ion and transport,no maintain,etc.

它以优良的卫生综合机械物理性，丰富的内涵力学原理、无焊无缝、一体成型、耐酸碱，耐碰撞，耐高温（90℃）、耐冷冻（-40℃），安装运输安全便捷，无需维修等优点，成为国际公认的理想的塑胶容器。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。