成双成对的

Plating method test was used to examine its growth regulative activity on radishes of amphibrya and corns of dicotyledon.

将目标化合物用水配制成浓度分别为10ppm、50ppm和100ppm的溶液，采用平皿法测试目标化合物对单子叶植物玉米和双子叶植物萝卜的生长调节作用。

The concentration of the compound was prepared as 10, 50, 100 ppm using water. plating method test was used to examine its growth regulative activity on radishes of amphibrya and corns of dicotyledon.

将目标化合物用水配制成浓度分别为10 ppm、50 ppm和100 ppm的溶液，采用平皿法测试目标化合物对单子叶植物玉米和双子叶植物萝卜的生长调节作用。

Two magnetic triphase catalysts of comb-like polyether s supported by γ-Fe2O3 were synthesized, and their catalytic behaviors in the iodo-substitution, etherization and the addition reaction of dichlo-rocarbene to styrene were also investigated.

以表面经偶联剂修饰的γ-Fe2O3为载体，通过聚分别与乙二醇单甲醚和一缩二乙二醇单甲醚的醇钠盐反应，合成了两种磁性梳状聚醚三相相转移催化剂，研究了它们在碘代、二氯卡宾对双键加成和混合醚制备反应中的催化活性。

Two triphase catalysts of comb-like polyether s supported by silicas were synthesized,and their catalytic behavior in the iodo-substitution,etherization and the addition reaction of dichlorocarbene to styrene were also studied.

以表面经偶联剂修饰的二氧化硅为载体，通过聚(β-氯乙基缩水甘油醚)和醇钠反应，合成了两种梳状聚醚三相转移催化剂，研究了它们在碘代、二氯卡宾对双键加成和混合醚制备反应中的催化活性。

Grignard reagents are among the most important and traditional organometal reagents. Addition of Grignard reagents to double bonds is one of most reliable methods for forming Carbon-Carbon bonds.

格氏试剂是最重要和最常用的有机金属试剂之一，使用格氏试剂对双键加成是生成碳碳键的重要方法之一。

The relationship between the reflectivity and the position of stress is hyperbolic tangent. Moreover, the phase had certain relations. Based on this, the characteristic of FBG under inhomogeneous transverse force were studied.

同时，应用传输矩阵的方法对光纤光栅横向局部受力特性进行了研究，研究发现当光栅局部受力时，反射谱产生分裂，分裂点波长移动与受力大小成线性周期变化，分裂点的反射率与光栅局部受力位置为双曲正切关系，而且相位也存在一定的关系。

This paper discussed the effects of oscillator noise on bistatic SAR imaging.

研究了振荡器的相位噪声对双站 SAR 系统成像的影响。

Through the experiment, the phase diagrams of SDS and CTAB aqueous mixtures were discussed. The influence of temperature and added salt sodium bromide on the aqueous two-phase regions have been observed.

在选定的实验条件下，SDS/CTAB/H 20双水相体系对菠萝蛋白酶有很好的萃取作用，在成相的两个区间，酶活性回收率均可以达到80%以上。

The double-phase 99mTc-MDP tomographic imaging has higher sensitivity and specificity in the diagnosis of benign lesion and breast cancer.

双期99mTc-MDP断层三维成像是一种高灵敏度和特异性的乳腺疾患检查方法，对鉴别乳腺良性病变与恶性病变有较高的临床价值。

In this experiment, the effects of several factors on bromelain activity were investigated.

本文首先研究了构造双水相体系的成相组分及不同操作条件对菠萝蛋白酶活性的影响。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。