质点

A new advanced blasting technique in China, delay in hole and sequence out hole blasting technique, was adopted in underwater blasting excavation of guide ditch ahead of water conveyance tunnel at Xiaowan Hydropower Station, thereby the controlling aim of high explosive rate and low single dynamite weight was achieved, the maximal particle vibration velocity was controlled in allowable range, guaranteed the safety of Cofferdam and rock dam and entrance water tower and so on, provided powerful guarantee for the successful guide water of the guide tunnel.

小湾水电站导流隧洞进口围堰堰外引渠水下爆破开挖采用了目前国内较为先进的孔内延时，孔外微差的爆破技术，整个爆破区分为多段起爆，从而达到高单耗，低单响药量的控制目的，将质点的最大振动速度控制在允许范围内，有效保证了围堰、围堰岩埂灌浆帷幕区及进水塔等建筑物的安全，为导流隧洞顺利导流提供了保证。

A new advanced blasting technique in China, delay in hole and sequence out hole blasting technique, was adopted in underwater blasting excavation of guide ditch ahead of water conveyance tunnel at Xiaowan Hydropower Station, thereby the controlling aim of high explosive rate and low single dynamite weight was achieved, the maximal particle vibration velocity was controlled in allowable range, guaranteed the safety of Cofferdam and rock dam and entrance water tower and so on, provided powerful guarantee for the successful guide water of the guide tunnel.

简介： 小湾水电站导流隧洞进口围堰堰外引渠水下爆破开挖采用了目前国内较为先进的孔内延时，孔外微差的爆破技术，整个爆破区分为多段起爆，从而达到高单耗，低单响药量的控制目的，将质点的最大振动速度控制在允许范围内，有效保证了围堰、围堰岩埂灌浆帷幕区及进水塔等建筑物的安全，为导流隧洞顺利导流提供了保证。

More than 800 protein spots could be detected by the imaging analysis system, and the analysis result indicated that molecular weight and isoelectric point of most proteins were from 10 to 100 KD and 4.0 to 9.0 respectively.

图谱经二维电泳软件分析，可检测出约800多个蛋白质点，分子量基本分布在10~100KD、等电点约为4~9的区域内。

Emphasis: The process of Various alkylation reagent producing electrophilic particle under different catalyzer and reaction mechanism of alkylation.

重点：各种烷化试剂在不同催化剂作用下亲电质点的产生和烷化反应历程。

Difficulty: The process of various catalyzer producing electrophilic particle.

难点：各种催化剂产生亲电质点的过程。

The Anne Arundel County Department of Health has once again issued an advisory warning people to avoid swimming, water skiing and other direct water contact in the East and South Beaches of Sandy Point State Park.

安妮arundel县的卫生署再度发出警告民众避免游泳咨询、滑水和其他直接接触水在东方和南方国家公园海滩沙质点。

On your sketches, mark the positions of particles a, b, c, d and e.

并在图中画出质点 a， b， c， d 和 e 的位置。

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。