四价

Cardiolipin is a unique Phospholipid with dimeric structure, carrying four acyl groups and two negative charges.

心磷脂是脂类中独一无二的带有负二价头部基团及多达四条尾链的磷脂分子，是线粒体内膜的主要成分，作为与功能相关的膜结构转变的主要参与者，近几十年来深受研究者的关注。

In the inviting bid of shielding equipments, in order to make sure the safety and reliability of constructions float control price took the place of low price in biding. After open bid, the four parts of Line 1 phrase 1 all adopted soil pressure balance shield and turbid shield equipments from Germany Herrenknecht Co.Ltd, and the first drivage shielding equipment was named "Innovation".

在盾构设备的招标上，为了充分保证施工安全和可靠，并没有提倡低价中标，而是设了投标控制价，通过公开招投标后，成都地铁1号线一期工程四个标段均采用德国海瑞克的土压平衡和泥水盾构，并将第一台掘进盾构命名为&创新号&。

Pure inorganic ladderlike polyhydrosilsequioxane was prepared by the way of subsection hydrolysis.

第二部分超常价态过渡金属Ni引发接枝聚合的研究本论文第四章主要研究了利用二过碘酸合镍Ni为引发剂于碱性条件下在纤维素上接枝丙烯酸甲酯，接枝以后的共聚物显示了很好的热稳定性和抗潮性。

The controlled experment shows dinuclear [Cu22] is the intermediate for tetranuclear [Cu44].

控制的实验表明二核的[CuI22]是四核的混合价铜配合物[Cu44]的中间体

The simulation results also demonstrate the hole transport properties in unstrained and strained bulk silicon material, which will be shown in the next chapter. In chapter 4, a Monte Carlo method including a realistic valence band structure is developed to simulate hole transport properties.

在第四章中，根据前两章所得到的价电带结构，使用蒙地卡罗方法来模拟电洞的传输，其两种模型对电洞传输特性的影响可以由模拟结果得知。

Meeker, along with the other four analysts whose firms underwrote the IPO, have been devoted cheerleaders of the stock, even as it has climbed from its $85 IPO price to above $171, a 101 percent increase in a matter of months.

米克及各自代表所在IPO承销商的另外四位分析师一直在不遗余力地吹捧Google股票，即使股价从首发价每股85美元蹿升到171美元以上、在短短几个月内猛增101%，照样摇旗呐喊不误。

Priced Direct: Shearing Machine, Bending Machine, Punching Machine, Three Roller Bending Machine, Hydraulic Press, four columns, bending machine, leveling machine, processing machine scheduling bus motor, blade shears, press brake tooling, forging, etc. gold plate, machinery and machine tool attachment.

厂价直销：剪板机﹑折弯机﹑冲床﹑三辊卷板机﹑四拄液压机﹑弯管机﹑校平机﹑母线排加工机﹑电动机﹑剪板机刀片﹑折弯机模具﹑等锻压﹑扳金机械及机床附件。

The news sent stocks and the dollar tumbling, while bond prices approached four-year highs and investors briefly increased their bets that the Federal Reserve could cut interest rates by as much as 75 basis points at its policy meeting this month – although Fed watchers think 50bp is more likely.

此新闻使股票和美元交易价摇摆不定，当债券价格接近四年来最高点的时候，投资者们更期望联邦储备局在这个月的政策会议上可以下降75%的利率点，尽管联邦观察员们认为最可能的利率点是50

At present, China's export of tea in the international market value per kilogram of only about 2 U.S. dollars, the average price of tea in India as a low IV, a low六成more than Sri Lanka, and even more than the price of tea in Kenya is even lower 20%.

目前，中国出口茶叶在国际市场上每公斤仅值2美元左右，平均茶价比印度低四成，比斯里兰卡低六成多，甚至比肯尼亚的茶叶价格还要低20%。

The ability of carbon to form stable compounds in such astonishing numbers arises in that it utilizes its four valence electrons completely in the establishment of four covalence,its valence shell becomes saturated.

碳原子能够利用其全部四个价电子构成共价键，并形成稳定的饱和价电子层。这就导致碳元素能构成各类数目惊人的稳定化合物。注意本句使用的是&逆序&的翻译方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。