可分离的碳环化合物环内含七个或七个以下的碳。
Isolable carbocyclic compounds contain seven or fewer carbons in the cycle.
测定了一批具有大小不同碳环的苯磺酰基环烷烃甲酸酯对发光菌的毒性数据。
Batch data for the toxicity of phenylsulfonyl-cycloalkane carboxylates containing different sizes of carboatomic rings to photoluminescence bacteria have been measured.
摘要碳环糖是一类呋喃或吡喃糖环中的氧原子被亚甲基取代后形成的糖类似物。
Carbasugars carbocyclic analogues of true sugars are compounds in which the ring-oxygen of furan oid or pyranoid sugars is replaced by methylene group.
咪唑并稠合碳环和杂环，它们的制备方法，含有它们的组合物以及它们的应用。
Imidazo-fused iso-and heterocycles, process for their preparation, compositions containing them and their use.
由于膨胀机碳环密封后面的密封垫片在安装时未被充分压紧，使膨胀机机体及相应管道进油。
At installation, insufficient compression of the sealing pad behind the carbon ring seal of the expander results in oil entrance to expander body and to the corresponding pipeline.
本文概述了关环转换反应所用催化剂体系及其在天然产物合成中的应用，内容涉及到碳环及含氧、含氮杂环天然产物的合成。
This paper reviews the catalyst system in RCM reaction and RCM application in the synthesis of natural products including carbon ring, oxygen heterocycles and nitrogen heterocycles, etc.
聚苯乙烯泡沫塑料是一种加工塑料，主要由被称作苯基团的碳环和氢环构成，苯基团连接到能降解成更小苯乙烯单元的长链碳氢化合物上。
Polystyrene foam is a manufactured plastic primarily made up of rings of carbon and hydrogen, called phenyl groups, attached to long hydrocarbon chains that can break into smaller styrene units.
中离子碳烯类似于氮杂环碳烯。
这便把一种产品整个生命周期中的碳排放减到了最低，由此提供了长期减少碳排放的方案。 这比只盯住产品周期中的一环——比如货物空运——要有效很多。
This minimizes the entire life cycle carbon footprint of a product, providing a long-term emissions reduction solution, rather than looking at just one part of the cycle such as airfreight.
此外，木质建筑系统在隐含碳方面要比传统建造的建筑和大部分在明尼阿波利斯市中心的建筑以及北环外的建筑要低。
Additionally, the embodied carbon in the building's wood structural system is lower than that found in conventional buildings found throughout most of downtown Minneapolis and the North Loop.
考虑到环境友好型实践越来越重要，设计试图从供应链的每一环都减少碳排放。
Taking into account the increasing emphasis on eco-friendly practices, the design seeks to decrease carbon emissions in each aspect of its supply chain.
这意味著重的石头在碳矽石环容易得多。
This means resetting stones in a moissanite ring is much easier.
石墨炭化是使用碳—石墨环时密封失效的主要原因之一。
Carbonization is the use of carbon graphite - graphite seal ring when one of the main reasons.
以环氧树脂为基体，以玻璃布和碳布为增强材料，采用模压成型工艺制备了某型无人机机翼环肋复合材料结构件。
The aerofoil rib parts for pilotless aircraft was manufactured by using mold pressing process with epoxy resin as matrix materials and glass cloth as enhancement materials.
一种配位(络合)化合物，其中的金属离子与氮、碳或氧等非金属原子结合生成有配位共价键的杂环。
An organic coordination (complexing) compound in which the metal ion is bound to atoms of nonmetals, e. g. nitrogen, carbon, or oxygen, to form a heterocyclic ring having coordinate covalent bonds.
并将碳、氧同位素这一环境敏感指标推广到了高矿化度的“准”咸湖的环境中。
And we also can extend c, o isotopes, this sensitive environmental information indicator to nearly saline lake conditions of high degree mineralization.
芳环的存在可以增加与其相连的仲碳和叔碳的反应活性。
The reactivity of tertiary and secondary C connected to the arene ring was increased obviously.
嘌呤：嘌呤是对由碳、氮原子组成的双环结构的杂环化合物的统称。
Purine: Any of a class of heterocyclic compounds with a two-ring structure composed of carbon and nitrogen atoms.
萃取物的结构单元主要由芳环和脂环所构成，萃取物的平均分子量为448，芳碳率为0.53。
The structural unit of extract consists primarily of aromatic rings and cycloparaffinic rings. The average molecular weight of the extract is 448. The aromaticity is 0.53.
以二环己基碳化二亚胺为活化剂将葡萄糖氧化酶(GOD)共价键接在玻碳电极上。
Glucose oxidase (GOD) was attached to glassy carbon electrodes by covalent binding with dicyclohexylcarbodiimide as an activator.
该文首次论述了在不同的碱性条件下芳环上碳代异戊烯基的方法。参考文献24篇。
In this paper the methods of inducing prenyl into aromatic nucleus under basic condition are discussed for the first time with 24 references.
卟啉的平均分子结构简式衡量其取代基的组成，尤其对地质体中相同碳数的卟啉“ 混合物” 大环外取代基的构成十分有效。
The average condensed formula of molecular structure is effective to derive the composition of the peripheral substituents of porphyrins, especially geoporphyrins with identical carbon numbers.
关环转换反应是形成碳碳双键的重要反应之一，即双烯化合物在金属碳烯催化下关环得到环烯类化合物。
Ring closing metathesis (RCM) of dienes to cycloalkene provides an important tool for C-C double bond formation catalyzed by metal carbene.
变质后高碳高速钢辊环在硬度不变的情况下，冲击韧性提高了73.6 %。
Compared with the high carbon high speed steel without modification treatment, the impact toughness is increased by 73.6 %, with same hardness.
芳环能在一对相邻碳上结合，生成萘、葸和等化合物。
Aromatic rings can be joined at a pair of adjacent carbons to yield compounds such as naphthalene, anthracene and chrysene.
结果表明，从环型沼泽湿地边缘向中心，土壤剖面有机碳含量和有机碳储量变化明显。
The results showed that the content of organic carbon in soil profile and the storage of organic carbon in different soils varied obviously from margin to center of the annular wetland.
为保证碳筋不出现滑移，软金属管和碳筋间的摩阻角应大于锚环锥角和夹片与锚环之间的摩阻角之和；
To avoid slip of CFRP bars, the friction angle between soft metal pipe and CFRP bars should be larger than the sum of barrel's conical angle and friction angle between wedge and barrel.
为保证碳筋不出现滑移，软金属管和碳筋间的摩阻角应大于锚环锥角和夹片与锚环之间的摩阻角之和；
To avoid slip of CFRP bars, the friction angle between soft metal pipe and CFRP bars should be larger than the sum of barrel's conical angle and friction angle between wedge and barrel.
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