查询词典 if necessary

In the field, this is normally achieved through the use of self-propelled steel-wheeled or pneumatic-tired rollers, and must be carried out while the asphalt cement is sufficiently fluid that it acts as a lubricant and assists the repositioning of the aggregate particles, if necessary, into a denser will apply to sufficiently well-compacted asphalt concrete mixtures.

在该领域，通常的做法是通过自推进钢轮或者气动轮胎滚轴来完成，并且必须要在沥青奖完全液化，可以做润滑脂和辅助聚合颗粒重定位的时候进行，如果需要的话，要使用致密器来充分压缩沥青混凝土混合物。

At the beginning of Augustus' reign there were 16 praetors, which he reduced to 12, a number that generally prevailed thereafter (though it could be expanded if necessary).

奥古斯都的统治开始之时，大法官的人数有十六人，他将其减少至十二人，此后这一官职的人数一直保持此值，当然如有必要则可以增加此数。

If necessary add sufficient water to make the mixture pourable.

如有必要补充足够的水分，使混合物浇注。

Give specific time with date,month,year and even offer hour,minute if necessary

时期要具体，用年月日标明，甚至必要时，小时分钟也应明确。

If necessary, please call letter from your use, price, quantity, and production requirements.

如有需要请来信来电说明您的用途、价位、数量，并提供制作要求。

Change the form of the word if necessary.

如果需要可以改变单词的形式。

METHODS: 40 cases were classified stage IV with lumen obstruction after they failed all other treatment regimens. PDT was performed witn 630nm light delivered through cylinder diffusing tip quartz fibers passed through the biopsy channel of a flexible endoscope 48h after intravenous injection of the photosensitizer photofrin. PDT endoscopy was repeated and necrotic tissue was mechanically removed and, if necessary, that site or other new sites were treated after 48 hours. Two days after this another endoscopy was performed and the necrotic tissue was mechanically removed. Endoscopy was repeated one month after PDT and periodically thereafter as needed to re-treat symptomatic residual tumor.

40例肿瘤患者均属于IV期，所有患者都经过化疗、放疗或其他方法治疗无法解除腔道梗阻或不完全梗阻，部分完全梗阻患者结合其他治疗手段解除梗阻，光敏剂为photofrin，按2mg/kg体重静脉滴注，48小时后经内镜导入光导纤维给以630nm（DIOMED半导体激光治疗机）的激光照射，2天后经内镜清除坏死组织并对原有病灶和新发现病灶给以复照，之后根据具体情况给患者的病灶部位清除坏死组织。

If necessary, the Seller may insurance against War Risk for accout of the Buyer .

如果需要，卖方可以投保战争险，费用买方负担。

This feature eliminates the need for a torsion spring and allows the contact forces to be higher if necessary.

这一特点消除了对扭力弹簧的需要，并且如有必要可使接点力加大。

"Senator McCain will gladly accept the torch and stay the course, keeping troops in Iraq for up to 100 years if necessary," she said.

希拉里。克林顿说：麦凯恩参议员将愉快地接过火炬，继续走这条路，如果必要，就让军队在伊拉克再待100年。

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。