成酶的

It is accomplished in the alimentary canal by the mechanical and enzymatic breakdown of foods into simpler chemical compounds.

这是在消化道中通过将食物机械和酶化分解成简单的化学混合物来完成的

Results It was found that ATRA could inhibit the adhesion capacity as well as collaˉgenaseⅣsecretion of Hca-F cells in a dose related fashion.

结果 ATRA对Hca-F细胞的人工基底膜粘附能力，以及对Ⅳ型胶原酶的分泌均有明显的抑制作用，其抑制能力在一定范围，随ATRA浓度成正比。

After being treated by collagenase Ⅰ(0.2%) about 8 hours,those tissue pieces were cultivated in DEME culture medium with 20% calf serum.

取大鼠肺分支动脉，先切成小块进行胶原酶的消化，约8 h，而后用含20%小牛血清的DEME培养基贴块培养。

Methods:The rat intra-pulmonary arterywas separated carefully and cut into small pieces.After being treated by collagenase Ⅰ(0.2%) about 8 hours,those tissue pieces were cultivated in DEME culture medium with 20% calf serum.

取大鼠肺分支动脉，先切成小块进行胶原酶的消化，约8 h，而后用含20%小牛血清的DEME培养基贴块培养。

22 All flus are named for the shapes of hemagglutinin and neuraminidase displayed on the virus's shell.

我觉得应译成：所有流感都是根据病毒外壳表面表达的血球凝集素和神经氨酸酶的形状命名的。

Since the first crystal structure of the Fe-only hydrogenase was published in 1998, intensive efforts have been spent on the structural and functional models of Fe-only hydrogenase due to its great capability of catalyzing the reduction of protons to molecular hydrogen at extraordinarily high rates.

自从1998年唯铁氢化酶的第一个晶体结构发表以来，由于它可高效地催化质子还原成氢气，其活性中心的结构和功能模拟受到了广泛关注。

The World Health Organization has found that 70% of people above the age of 12 lose the ability to produce lactase, and so cannot adequately digest the lactose in milk.

世界卫生组织发现，近七成12岁以上的人群丧失了生成乳糖酶的能力，不能充分消化牛奶中的乳糖。

Since several dipeptides and tripeptides have been reported to be played the important roles in biophysiological functions, specific peptidyl-peptiases may have great potentialities for use in food biotechnology industry.

由於某些二胜肽及三胜肽被研究报告为具有许多生理功能之活性胜肽，因此，具有将蛋白质水解成特殊小胜肽之分解酶的研究与开发，在食品生物技术领域上具有很大的应用潜力。

The linear plasmid and the designed fragment were directively ligated with T4 DNA ligase,and the plant expression vector of carrot afp was constructed.

将目的片段与线性质粒在T4 DNA连接酶的作用下进行定向连接，构建成胡萝卜afp的植物表达载体pBAF。

As a retrovirus, HIV is consist of two monocatenarian RNA and converted to proviral bicatenarian DNA by reverse transcriptase.

HIV是一种逆转录病毒，有两条单链RNA组成，在逆转录酶的作用下，转录成前病毒双链DNA。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。