查询词典 cyclopentane

Cyclopentane reduced the induction time of hydrate formation, but could not improve the methane consumption during gas hydrate formation in a quiescent cell.

液态烃环戊烷降低了水合物形成的诱导时间，但环戊烷不能提高水合物的填充密度。

In China an eight-step approach to the cis-bicyclic amine was adopted, including five-step route to cyclopentane-...

国内工业生产方法是以环己酮为原料经五步反应合成中间体1，2-环戊烷二甲酸，再经过三步反应完成顺式构型的建立和氮杂五元环的合成。

The studies of the electronic structure of small-saturated hydrocarbon molecules have received much interest, this is because these molecules are prototypes of larger hydrocarbons. In thesis, the structure of the isobutane and cyclopentane were studied by using Hartree-Fock and density function theory with the Gauss basis set, the experimental ionized energy data of the isobutane were analyzed.

有机分子结构的研究是复杂有机系统研究的基础，论文用Hartree-Fock方法和密度泛函理论研究了异丁烷和环戊烷分子的电子结构，并对异丁烷分子的实验电离能谱进行了分析。

The cyclopentane mixed with other substances is made into vesicant in the mixed station of the non-freon line in Kelon Group of Guangdong.

广东科龙集团无氟生产线中的预混站是使用环戊烷危险物品配制发泡剂的重大危险源，燃烧爆炸事故风险较大。

In the process of producing soft urethane polyester foamed plasics,CFCs as forming agent are replaced by cyclopentane whose value of ozone depletion is zero to decrease the destruction of environment,and the modified poly-ether-alcohol is used as reactants through one-step reaction.

为了解决软质聚氨酯泡沫塑料生产过程中的环保问题，采用臭氧消耗值为零的环戊烷为物理发泡剂替代严重破坏臭氧层的氯氟烃，以改性聚醚多元醇与甲苯二异氰酸酯等为主要反应物，一步法反应研制试产了软质聚氨酯泡沫塑料。

The company's main product is high-pressure foam machines, laminating machines, various types of polyurethane products production line, premixed raw materials, storage transportation system, and at the same time undertake cyclopentane, isobutane reconstruction project and polyurethane equipment overhaul , Alteration, repair equipment important spare parts sales.

公司的主要产品为高压发泡机、层压机、各类聚氨酯制品生产线、原料预混、储存输送系统等，并同时承接环戊烷、异丁烷改造工程及聚氨酯设备的大修、改造，设备重要零配件的维修、销售。

Then the overall performance of the cycle with different organic working fluids was analyzed individually. Compared with the conventional cycle configuration used for only recovering the exhaust heat, the present cycle has higher waste heat recovery efficiency. The overall efficiency of the cycle with cyclopentane and R113 is 20.83% and 16.51%, respectively.

与传统的只回收发动机排气余热的热力循环系统相比，文中提出的构型其余热回收效率更高，当采用环戊烷为ORC工质时，循环系统的整体效率为20.83%；当采用R113为ORC工质时，循环系统的整体效率为16.51%。

3 Recently, we reported an efficient tin-free version of this reaction involving thiophenol for the preparation of cyclopentane derivatives through a 1,5-hydrogen transfer/cyclization sequence [Eq.(1); AIBN=azobisisobutyronitrile].

最近，我们报道了高效的、不使用锡试剂而使用苯硫酚的反应，这个反应是通过1，5-氢转移/环化步骤制备环戊烷衍生物的[化学反应式(1)；AIBN=偶氮二异丁腈][4]。

It is reported that the fifth-generation energy-saving Rongsheng star refrigerator, use of VIP vacuum insulation panels, ultra-efficient green fluorine-free compressor, double F-type high-performance wire-tube evaporator, and more energy-efficient dual airbag door closed, a new generation of cyclopentane composite foam technology and other energy-saving Multi-leading technology to ensure excellent insulation refrigerator insulation performance, power consumption of only 0.25 days, the volume for the same paragraph of ordinary refrigerator 1 / 3, is currently on the market to buy the lowest power consumption refrigerator, can be called "energy champion."

据介绍，容声第五代节能明星冰箱，采用了VIP真空隔热板、超高效环保无氟压缩机、双层F型高效丝管式蒸发器、多气囊节能双门封、新一代环戊烷复合发泡技术等多重领先的节能技术，保证冰箱极佳的绝热保温性能，日耗电量仅0.25度，为同容积段普通冰箱的1/3，是目前市场上能购买到的耗电量最低的冰箱，堪称"节能冠军"。

Whereas the tin hydride is used, for preparing functional fivemembered rings ,to induced alkenyl radical translocation/ cyclization process ——oxidaton process by selective activation of a C H bond——developed by Curran et al., thiophenol, non-tin chemical, is used in this new synthetic method for preparing cyclopentane derivatives through a 1,5-hydrogen transfer/cyclization sequenceEq.

在这些目标中，发展无毒、环保试剂实施有效的自由基反应是一具有挑战性的目标。Curran等发明了用氢化锡介导的自由基易位/环化过程是一种通过C H键的选择性氧化制备功能五元环的高效的方法。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失