再引入

The genetic material which encodes for chymosin is introduced into a micro-organism which can then be cultured to produce commercial quantities of chymosin.

遗传物质的编码为凝乳酶引入微生物，然后再培养，来生产商用数量的凝乳酶。

In China we are halfway there in terms of digital inventory, as OOH advertising was only re-introduced in 1979, in a short time we have 'leap frogged' over the organic stages of OOH development (paper and paste on billboards, to scrolling, to vinyl to some digital) and have moved quickly from vinyl to screen based OOH.

在中国，在实现数字化的量的道路上我们已经走了一半，要知道户外广告在1979年才重新引入中国，在很短的时间内我们实现了&飞跃&，跳过了户外广告发展的基本阶段（先是纸质和粘贴式的广告牌，到滚动广告，到胶印广告再到某种程度的数字化），从胶印广告快速过渡到户外数字媒体阶段。

The truth condition of intensional logical formulas was worked out according to the model-theoretic definition of Intensional Logic.

MG将内涵逻辑引入语义研究，语义表达式是内涵逻辑式，从句子到内涵逻辑的转变由翻译规则来完成，然后再按照内涵逻辑的模型论定义求出翻译句的内涵逻辑式的真值条件。

This thesis sets up a new method to synthesize stereoselectively ?ra玸--2,5-disubstituted tetrahydrofurans by introducing two alkyl groups in 3-C and 5-C of lactol, flash decomposition and hydrogenation.

本文独创新的合成方法：以-乳醇，即-4，10-二氧杂三环[5.2.1.0~(2，6)]-癸-8-烯-3-醇为原料，在其3-位和5-位先反向引入两个取代基，再经过热分解和催化加氢反应，高立体选择性地合成反式-2，5-二取代四氢呋喃。

The key problem is to synthesize high stereoselectively trans- 2,5- disubstituted tetrahydrofurans. This thesis sets up a new method to synthesize stereoselectively ?ra玸--2,5-disubstituted tetrahydrofurans by introducing two alkyl groups in 3-C and 5-C of lactol, flash decomposition and hydrogenation.

本文独创新的合成方法：以-乳醇，即-4，10-二氧杂三环[5.2.1.0~(2，6)]-癸-8-烯-3-醇为原料，在其3-位和5-位先反向引入两个取代基，再经过热分解和催化加氢反应，高立体选择性地合成反式-2，5-二取代四氢呋喃。

Consequently,the model obviates the needs for fitting and reducesthe arbitrariness to minimum,if the law of crack growth in mesoscopic level,i.e.,theR curve,is known.Naturally,the model relates the macrostructural response of thesolid with its mesotructure(the density,size and orientation of the crack).

如果细观微裂纹扩展阻力，即R曲线已知，无需再在演化规律中引入大量的经验参数，即可自然地建立起材料的细观结构(微裂纹尺寸，密度和方位)演化与材料的宏观响应的联系。

Methylol was led into the surface of carbon black and then graft esterificated with maleic anhydride using the feature that the hydrogen atoms onto the layer surface of carbon black were easily substituted.

为了改善导电炭黑与聚合物间的互容性，利用炭黑表面氢原子易被取代的特点，用甲醛在炭黑表面引入羟甲基，再与马来酸酐进行酯化接枝。

Methylol was led into the surface of carbon black and then graft esterificated with maleic anhydride using the feature that the hydrogen atoms onto the layer surface of carbon black were easily substituted.

摘 要：为了改善导电炭黑与聚合物间的互容性，利用炭黑表面氢原子易被取代的特点，用甲醛在炭黑表面引入羟甲基，再与马来酸酐进行酯化接枝。

The closed bag is introduced horizontally in the "help to palletize" unit and then lifted by an elevator.

封闭的包引入水平在&帮助堆垛&单位，再由电梯解除。

First, it gives a retrospective study of the demarcation problems in philosophy of science and explains how under different criteria of science/pseudoscience Feng-shui activities may be regarded as scientific or pseudoscientific.

其次，论文引入科学实践哲学和科学知识社会学的新视角，试图在科学知识社会学的案例研究的自然主义描述方式、微观的发生学进路和科学哲学对实践和语境重视的背景下对风水进行一次再考察。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。