查询词典 phosphoric acid

This displays the molecular mechanism heredity in the nucleus. DNA is composed of chain-trend ribose and root molecules of phosphoric acid, and basic pairs of molecules linked in double chains.

本展品所展示的是存在于细胞核内具有遗传特性的分子结构模型，主要由组成链走向的核糖和磷酸根分子以及双链之间互连的碱基分子组成。

A modified phosphatic coating which takes phosphoric acid, phosphate, boride as raw material was developed, and its antioxidation property was compared with that of unmodified phosphatic coating and ceramic coating containing silicium and boron.

研制了一种以磷酸、磷酸盐、硼化物等为原料的改性磷酸盐涂料，并与未改性的磷酸盐涂料和以硅、硼为主的多组分陶瓷涂料进行防氧化性能对比研究。

The effects of using silicon dioxide and coal fly ash as well as sodium borate as additives were studied to improve the mechanical characteristic of the MSWI fly ash with phosphoric acid pretreatment during the sintering treatment process.

为提高经磷酸预处理后的焚烧飞灰在烧结处理过程中的烧结体机械强度，研究了添加SiO2或粉煤灰进行调质，其添加比例对烧结温度和烧结体性能的影响。同时进一步研究了利用硼酸钠作为助熔剂对焚烧飞灰烧结试验影响。

A commercial fertilizer which contains 2.5 to 3 times as much available phosphoric acid as superphosphate.

一种商业肥料，它所含磷酸比过磷酸钙多2.5到3 倍。

METHOD: Radzx Stemonae tuberosae and Syringa reticulata Hara var. mandshurica Hara were identified by TLC, and the content of Baicalin was determined by HPLC. Agilent Eclipse XDB-C18 column (4.6 mm×250 mm, 5 m) was used, the mobile phase was methanol and 0.2% phosphoric Acid (45:55), flow rate was 0.9 mLmin^(-1), and the detection wavelength was 276 nm; the column temperature is 35℃.

采用薄层色谱法对制剂中的百部、暴马子皮进行鉴别，采用高效液相色谱法测定化痰平喘片中黄芩苷的含量，用Agilent Eclipse XDB-Cl8柱(4.6mm×250mm， 5μm)，以甲醇－0.2%磷酸(45：55)为流动相，流速：0.9mLmin^(-1)，检测波长为276nm，柱温：35℃。

Some of the bad ingredients would be: Phosphoric acid, because it is the chemical that adds a tangy or sour flavor, it breaks down starches into sugar.

一些不好的成分是：磷酸，因为它是化学剂，用来增加刺激性和酸味，它能使淀粉在糖里面溶解。

The catalysts such as tetraphenyl tin,aluminium isopropoxide and boron trifluoride etherate complex were used to catalyze the copolymerization.In addition,the copolyester can be given by copolycondensation after monomers were hydrolyzed by phosphoric acid.Boron trifluoride etherate complex was chosen as the catalyst because the catalytic activity was the best among the catalysts.

由于γ-戊内酯为五元环结构，难以进行开环聚合，因此分别考察了四苯基锡、异丙醇铝、三氟化硼乙醚络合物等催化剂，以及以磷酸为催化剂的水解缩聚反应，结果发现三氟化硼乙醚络合物的催化活性最高，因此选择三氟化硼乙醚为本体开环聚合的催化剂。

The film formed during the first stage was different from that formed either in phosphoric acid or sodium tungstate electrolyte.

第一阶段形成的氧化膜与在单独的磷酸或钨酸钠体系中形成的氧化膜有所不同。

The film formed during the first stage was differe nt from that formed either in phosphoric acid or sodium tungstate electrolyte.

第一阶段形成的氧化膜与在单独的磷酸或钨酸钠体系中形成的氧化膜有所不同。

Brown-rotted wood can be more easily liquefied than normal wood. When the weightratio of wood and Phenol to phosphoric acid was 1:2:0.16, the residue content of liquefieddecayed wood was only 7.6％for 0.5h.

试验结果证明，当1％NaOH抽出物或结晶度变化至54％和28％左右时，木材的生物预降解程度即可达到缓和液化条件的目的。

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。