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Dihydrosafrol is mainly used to synthesize piperonyl butoide which is a widely used insecticide synergist.

二氢黄樟油素主要用于合成高效、用途广泛的农药增效剂———胡椒基丁醚。

We studied effect of terpene enhancer with different structure on transdermal permeation profile of model drug.

本文首先考察了不同结构(醚类、单环单萜、双环单萜和倍半萜)代表萜类促渗剂对盐酸普萘洛尔透皮性质的影响。

Thermolysis of DM-DMI bis-carbamate was carried out in 3wt % solution of diphenyl ether at 254℃ for 5-6 hours, and the yield of DM-MDI is 61% after purification.

而在第二步骤的热裂解反应中,在3wt %二苯醚溶液中,控制反应温度在254℃,经反应5-6小时即得到DM-MDI,经浓缩及纯化后主产物之产率为61%。

In the sevoflurane group, hepaticadenosine triphosphate and energy charge were significantlyhigh at all measurement times.

在七氟醚组,肝的三磷酸腺苷和能荷在所有测量时间点都明显较高。

The problems in production of low unsaturation polyether with DMC catalyst were introduced.

介绍了使用DMC催化剂生产低不饱和度聚醚时存在的问题。

We recently caught up with him to talk FIFA versus PES, revolutionising dribbling games, unsporting behaviour and the merits of annual updates to the franchise.

最近,我们赶上了他说话国际足联和聚醚砜、改革盘带游戏、非体育道德行为而与之优点,每年更新的免赔额。

Moreover, signals characteristic of the crown ether at d=3.72 and 3.82 ppm in four-arm PCL20–DB24C8 (Figure 1b) shifted upfield to the range of d=3.4–3.8 ppm (Figure 1c).

此外,信号特征冠醚为D = 3.72 并在百万分之3.82四臂 PCL20 - DB24C8(图1b)转向高场的范围= 3月4日至3月八日百万(图1c)。

It also has a leather and suede upper, shiny PPG accents and a perforated vamp and tongue.

它还有一个皮革和小山羊皮上,闪亮的聚醚口音和穿孔鞋面和舌头。

Uranyl ion is coordinated with two water molecules and it is independent of the concentration of nitric acid.

对于C_(H_2o)/C_uo_2~(2+值较大的情况,用六甲基二硅醚为内标物测定水合数。

A biodegradable polyurethane foam from liquefied polyol was successfully prepared by using water as vesicant in one step method.

其次,以液化多元醇代替部分聚醚多元醇,采用一步法制备了以水为发泡剂具有良好性能的环境友好可降解聚氨酯包装用泡沫塑料。

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