查询词典 chain block

The prepared PU was an elastic solid,which could dissolved in ethanol,and it exhibited strong deep purple fluorescence at the peak of 365 nm along with a shoulder at 386 nm as a thin film. Obviously,the prepared PU also was a kind of uncommon ultraviolet-emitting polymer materials.2.A novel water-soluble rod-coil block copolymer was designed and prepared successfully via the facile isocyanic acid polycondensation method using polyfluorene as rod segment and polyethylene glycol as coil segment in the main chain for the first time.

所制备的聚氨酯是一种弹性固体，可以溶解在乙醇中，同时又显示出具有半导体性质的荧光性能——最大荧光发射峰在365 nm并且在386 nm处有一个小的侧肩峰，可见它又是一种非常难得的紫外发光聚合物材料。2、首次采用了简单的异氰酸酯反应，成功地将聚芴作为刚性链段和聚乙二醇作为柔性链段，以嵌段方式连结到聚合物分子主链上，从而形成了一种新型的具有刚性链—柔性链结构的嵌段共聚物。

A one-pot chemoselective reduction and lactonization of(4S,5R)-hemiesters was carried out to afford high-yielding(3aS,6aR)-lactone,a key chiral building block for the biotin synthesis. One-step introduction of carboxybutyl chain onto(3aS,6aR)-thiolactone was reached upon treatment of zinc reagent 25 in the presence of nanopalladium via an improved Fukuyama coupling under mild reaction conditions.

在侧链引入过程中，采用纳米钯LDH-Pd~0为催化剂以改进的Fukuyama偶联反应一步高效地引入-生物素五碳羧酸侧链，紧接着创造性地以离子氢化的方式建立了-生物素的第三个手性中心。

Mainly engaged in manufacture of various machine parts: Machine Tools Guide Shield, clothing cable sheath with catheter, engineering towline, aluminum trailers chain, APS towline, metal hose, work lights, protective kits, cooling, machine tools Sizing Block, groove board, aluminum blinds, electrical appliances, such as 30 years ago, that host more than 100 facilities and equipment manufacturers to provide a repair various specifications of products for CNC machine tools guide protection, research and development have made great contributions.

主要经营制造加工各种机床部件：机床导轨防护罩，穿线缆用导管护套，工程拖链，钢铝拖链，APS拖链，金属软管，工作灯，防护套，冷却管，机床垫铁，槽板，铝帘，起重电器等。30年来，以为100余家主机生产厂商配套及设备维修提供了各种规格的产品，为数控机床导轨防护，研制开发作出了很大的贡献。

Escaping once from spear-throwing Turkana in northern Kenya, he felt the chain come off, but managed to coast downhill to safety. He crossed China from north to south—in 2006, at 72—with just three brake-block changes, one jammed rear-brake cable and a change of tape on the handlebars.

在肯尼亚北路受到Turkana 人投矛袭击时，他感觉车链子掉了，但却成功地滑行下山到了安全地带。2006年，72岁时他在中国从北部骑到南部，其间只换了三次刹车皮，一根失灵的后刹车线和把手上的皮带。

Escaping once from spear-throwing Turkana in northern Kenya, he felt the chain come off, but managed to coast downhill to safety. He crossed China from north to south-in 2006, at 72-with just three brake-block changes, one jammed rear-brake cable and a change of tape on the handlebars.

在肯尼亚北路受到Turkana 人投矛袭击时，他感觉车链子掉了，但却成功地滑向了安全地带。2006年，72岁时他在中国从北骑到南，其间只换了三次闸，一个后煞车线和把手上的皮带。

Solid minerals separation processing machine, casting emery, metal-casting shaped boxes, model base board, force piston, plastic or rubber, injected plug and pressed plug, transfer shaft, crank and other transformation sections, bearing support, teeth pulley and other gearing speed variator, ball bearing, flywheel, chain wheel including pulley block.

固体矿物分选等处理机器，铸造砂。金属铸造用型箱，型模底板，阳模，塑胶或橡胶用注模或压模。传动轴及曲柄等传动部件，轴承座，齿轮及其它变速，传动装置，滚珠，飞轮及滑轮，包括滑轮组。

Plastic gift: Professional development and production of various types of soft gifts, such as Block Mobile \ Mobile Phone Charm \Mobile \ cell phone non-slip pad \ frame \ cartoon frame \ lock key chain \ notebook \ luggage tag \ wrist band \ silicone hand Central \ mug \ car front anti-skid pad \ shockproof mat \ cup \ cushions \ bar pad \ mats \ mouse pad \ Mobile Sassafras \ U disk shell \ U disk sets \ brooch \ bracelet \ Watch band \ Fridge paste \ hairpins \ bookmarks \ book folder \ pen \ cartoon cap of a pen, such as soft / Epoxy / PVC micro-injection products, the other for all types of clothing, sports shoes, handbags, toys and gifts such as plants to provide plastic chapters, screen printing, printed standard, self-adhesive stickers, woven Tianbiao, Paper card, tag and other accessories.

塑胶礼品：专业开发生产各类软胶礼品，如手机座\手机吊饰\手机来电闪\手机防滑垫\相框\卡通相框\锁匙扣\笔记本\行李牌\手腕带\硅胶手环\马克杯\汽车前台防滑垫\防震垫\杯垫\桌垫\酒吧垫\地垫\鼠标垫\手机檫\U盘外壳\U盘套\胸针\手镯\手表带\冰箱贴\发夹\书签\书夹\笔筒\卡通笔套等软胶/滴胶/PVC微量射出制品，另外为各类服装、运动鞋、手袋、玩具等厂及礼品提供胶章、丝印、印标、不干胶贴纸、织标、皮牌、吊牌等辅料。

A novel chiral block copolymer PCys-b-PPO-b-PCys bearing Leucine in the side chain was synthesized for the first time.

首次合成了侧链带有手性基团的聚半胱氨酸－b-聚环氧丙烷－b-聚半胱氨酸嵌段共聚物。

Novel chiral block copolymer PCys-b-PPO-b-PCys bearing Leucine in the side chain was synthesized for the first time.

bstract 首次合成了侧链带有手性基团的聚半胱氨酸－b-聚环氧丙烷－b-聚半胱氨酸嵌段共聚物。

Users can at any time in accordance with the requirements of the design, production of different specifications of the chain, Shoumo Block, and related spare parts.

随时可以按照用户要求进行设计、生产不同规格的链条、手模座、及相关备件。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。