过量使用

When bromine was used to bromization reaction with 4-acetyl-guaiacol,the product bromide incompletely or super bromide partial,and the selectivity was poor.

使用单质溴与4-乙酰基愈创木酚进行溴化反应时，产物溴化不完全，或者局部过量的溴化，且选择性较差。

Carboxy terminated polyesters are readily made by using a stoichiometric excess of the acid.

羧基聚酯可随时终止使用化学计量的酸过量的。

It is best to use 15 in a 5% excess in order to compensate for a small loss of material due to oxidative ethyne homocoupling.

最好使用15 5 ％过量为了弥补一小损失的材料由于氧化乙炔homocoupling 。

The ordinary causes are too much hormone formed during puberty, too excessive lipa, fatty acid, which cause the block of the sebaceous glands, indigestion and habitual constipation; using high-lipa cosmetics, not noticing personal hygiene.

常见的是青春期激素生成量过多，产生过量的油脂、脂肪酸，造成皮脂腺阻塞；消化不良，习惯性便秘；使用油脂过高的化妆品；不注意个人清洁卫生；空气污染；心情紧张压力大等多种情况都会造成青春痘的产生。

The result indicated that: the amount of the excess HF formed direct ratio to the yield of phosphorus pentafluoride and the optimum amount of the excess HF used is about 35%; the trickling rate of oleum shouldnt make the temperature of hexafluorophosphoric acid exceed 25 ℃ and the amount of oleum is 110% to 125% that of stoichiometry so that the content of phosphorus pentafluoride can be achieved 90%; the time and temperature of heating hexafluorophosphoric acid influenced both the yield and the content of phosphorus pentafluoride, and the optimum time should be about 30 minutes and the proper temperature was 148 to 153℃; when alcohol used asrefrigerant, the content of phosphorus pentafluoride was 94.03%, and the content can be up to 97.38%, provided that using liquid nitrogen as refrigerant.

通过实验发现，氟化氢用量与五氟化磷的产率成正比，最佳过量百分率宜在35％左右；发烟硫酸的滴加速度不能使中间产物温度大于25℃，发烟硫酸用量大于理论量10％～25％时，得到的五氟化磷纯度高于90％；六氟磷酸的加热温度对五氟化磷的产率和纯度均有影响，宜在148～153℃的范围内，加热时间应在30分钟左右；用工业酒精做冷凝介质得到的五氟化磷纯度最高只能到达94.03％，使用液氮做冷凝介质可以使五氟化磷的纯度达97.38％以上。

Its main elements are effective water reducing agent,retarder and air entraining agent.

配制HPC掺用外加剂是最重要的途径，其主要成份是高效减水剂、缓凝剂、引气剂，合理掺用可以取得最佳技术效果，过量掺用或使用不当则会产生负面影响。

The body of the law is no less incumbered with superfluous members, that are like Virgil's army, which he tells us was so crowded, many of them had not room to use their weapons.

法律的躯体因为过量的成员而妨碍其正常运作，就如维吉尔的军队，他告诉我们，他们因为拥挤而没有空间使用武器。

Calorific values are measured using a bomb calorimeter apparatus consisting of a strong container in which the sample is sealed with excess oxygen and ignited electrically.

热值的测量是用筒型高压气体热量计该仪器包括一强化容器﹐而样本被密闭在该容器内，并填入过量氧气及使用电子式点火。

If NO, how do you make sure the colorants used are qualified Please indicate.

否。如果否，贵司如何能够确保所使用的着色剂不含有过量的有害物质请说明。

In Japan there is a strict anti-stimulant drugs law, which forbids use of many over-the -counter inhalers.

在日本有一项严格的反兴奋剂药物法-禁止使用许多过量吸乳器。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。