向性的

The results showed that activity and thermostability of β-amylases were greatly improved by addition of 30 mmol/L Ca(superscript 2+) to soluble starch solution, whereas the formation of reducing sugar was slightly increased by the addition of Ca(superscript 2+) during liquidification.

研究表明，向可溶性淀粉溶液中添加30 mmol/L Ca(上标 2+)，能大大提高β-淀粉酶的活性和稳定性；而液化过程中的外加Ca(上标 2+)盐可使还原性糖的生成量略有提高。

Organic chelators can enhance soil nickel bioavailability by transforming solid-nickel to solubile nickel in soil.

有机螯合剂的存在能促进土壤中的固相Ni向水溶态转化，提高Ni的生物可利用性。

A baseline separation of Sitafloxacin epimers was achieved with a background electrolyte of 10 mmol/L KH2PO4-K2HPO4 (pH 4.5), 10 mmol/L CuSO4, 20 mmol/L γ-CD and 10 mmol/L D-Phe. The linear range for Sitafloxacin was 32-400 mg/L (0.996). The relative standard deviations of migration time and peak area were less than 1.9% and 3.8% respectively.

实验结果表明，添加剂的种类和浓度是影响西他沙星手性分离的重要因素，只有当D-苯丙氨酸、铜离子和γ-环糊精同时存在并达到一定浓度时，西他沙星差向异构体在毛细管电泳中才具有良好的分离效果。

Metropolitan newspapers are thus turning into city newspapers, a blow to their future prospects, since virtually all the population growth in America is in the suburbs and exurbs.

于是都市报纸开始向城市性报纸转型，这对他们日后的发展是毁灭性的打击，因为事实上现在美国的人口增长都在市郊。

Metropolitan newspapers are thus turning into city newspapers, a blow to their future prospects, since virtually all the population growth in America is in the suburbs and exurbs.

于是全国性报纸开始向城市性报纸转型，这对他们日后的发展是毁灭性的打击，因为事实上现在美国的人口增长都在乡村或郊区。

Metropolitan newspapers are thus turning into city newspapers, a blow to their future prospects, since virtually all the population growth in America is in the suburbs and exurbs.

于是开始向城市性报纸转型，这对他们日后的发展是毁灭性的打击，因为事实上现在美国的人口增长都在

Magnetic sus- ceptibility of these formations was obviously lower than the Archean high-graded metamorphic crystalline basements, while the responding ductile shear zones created enhanced anisotropy magnetic susceptibility attributed to their penetrative mineral lineations, both of them contributed to the crustal scale NEE-NNE striking linear aeromagnetic anomalies.

不同规模的古元古代活动带彼此并不相连，以发育变质沉积-火山岩建造为主体，岩石磁化率明显低于太古宙高级变质结晶基底，与之相关的韧性剪切带则以其透入性矿物线理产生了增强的磁化率各向异性，两者共同构建了地壳尺度北东东-北北东向线性航磁异常带。

The distinguishing features of the hull form are as follows:(1) Each of the two skegs extends downward to the base line and afterward to the rudder pindle in order to protect the propeller and the rudder from being damaged;(2) The form of the hull bottom is designed considerably flat for the need of taking the ground....

其船型特点是：双尾鳍向下延伸至基线，并带舵托，对螺旋桨和舵起到良好的保护作用；船底形状较为平坦，便于座滩。快速性试验结果表明，该船的阻力性能和推进性能在设计航速（Fr＝0.384）时都是优良的。

Based on radar backscatter theory and scattering point model,a universal theoretical radar echo model of circle rotation scattering point on arbitrary plane was derived and established,and the equivalence of this model to the one of vibration scattering point was discussed.

基于雷达后向散射理论和散射点模型，针对雷达目标的任意圆周旋转散射点，详细推导并建立了雷达回波通用模型，对其与振动散射点的等效性进行了详细的讨论。

This suggests that shoot apex is most sensitive to water stress and the ~(14)C-photoassimile distribution likely shifts from above-ground to root, being benefit to maintaining root growth and tolerance to water stress.

这表明茎尖对水分胁迫非常敏感，同化物向茎尖的运输受到抑制，运积重心由地上部转到地下部，从而有利于保持根系在胁迫条件下的生长，提高植物的抗旱性。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。