查询词典 rosin

In September of 2004 we purchased the gum rosin production line from Guangdong Deqing forestry chemicals products Co., Ltd., the investment t amount is USD 4,000,000, main management are Gum rosin, turpentine, etc.

肇庆迪爱生松香有限公司是由迪爱生投资有限公司与德庆迪爱生合成树脂有限公司共同投资的中日合资企业，是DIC全资子公司。

A series of interpenetrating polymer network materials, based on a rosin-based epoxy resin and a turpentine-based polyurethane were prepared from gum rosin and turpentine oil.

以同步法制备不同配比的松香基环氧树脂/松节油基聚氨酯互穿网络体系。

There are four million seven hundred and thirty thousand hectare forests in Yunnan province at present, including one hundred and four million sixty three thousand mu Pinus Yunannensis and Pinus Kesiya, which accounts for 75.7 percent in whole province. There is five hundred million and two million stere storage of wood, accounts for 55.1 percent in total. It is also the first in China. If adequately use this resource, it will tap crude rosin one million two hundred and forty thousand ton, which can produce gum rosin eight hundred and ten thousand ton and gum turpentine oil three hundred and ten thousand ton.

云南省现有松林面积473万公顷，云南松和思茅松森林面积共有一亿零四百六十三万亩，占全省森林面积嘀百分之七十五点七，森林蓄积量共五亿零二百多万立方米，占全省森林总蓄积量嘀百分之五十五点一，居全国各省区之首，如果充沛利用起来，云南省每年可采割松脂一百二十四万吨，生产松香八十一万吨、松节油三十一万吨，相当于日前世界松香总产量一百万吨嘀生产资源。

A new method for synthesizing rosin allyl alcohol ester was studied. p-Toluenesulfonic acid allyl alcohol ester was first synthesized by O-acylation of allyl alcohol with p-toluene sulfonyl chloride, using NaOH as catalyst. Then rosin allyl alcohol ester was synthesized from sodium resinate and p-toluenesulfonic acid allyl alcohol ester.

探索了一种两步合成松香烯丙醇酯的新方法，即先以烯丙醇和时甲苯磺酰氯为原料，以NaOH为催化剂，通过O-酰化反应合成中间体对甲笨磺酸烯丙醇酯，再与松香钠皂发生亲核取代反应合成目标产物松香烯丙醇酯。

Hydrogenated rosin is one of the dominant varieties of modified rosin and is widely used in industry.

氢化松香是松香改性产品的主要品种之一，有广泛的工业用途。

The color of material rosin was the one of key factors of affecting color of rosin esters.

控制原料的颜色也是制得无色松香酯的关键之一。

It is an organic substance and is a petrified rosin of ancient trees related to rosin.

一种有机物质。它是一种含一些有关松脂的古代树木的石化松脂。

In a particular embodiment, a crop protection composition comprises a mononucleate solid crop protection particle coated with either wood rosin, rosin derivatives, waxes, fatty derivatives, sterols, long-chain sterol esters and sulfur.

在具体的实施例中，农作物保护组合物包括一种用木松香、松香衍生物、石蜡、脂肪衍生物、甾醇、长链甾醇酯及硫中之一加以包被的单核固体农作物保护颗粒。

Polymerized rosin is a modified products of gum rosin, contains abietic type acids.

聚合松香是松香的改性产品，含枞酸型树脂二聚体。

The conversion rate of rosin has been more than 85%, this ramification of rosin has a high reactivity, it can be additional polycondensated with dicarboxylic acid, synthesizing such as air-drying unsaturated polyester et al, so it can provide a new way for the deep processing of rosin, and...

该松香衍生物具有高的反应活性，可与二元酸加成缩聚，例如合成气干型不饱和聚酯等，从而提供了一种松香深加工利用的新途径

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。