四

Through the analyse on question of brake in Tongmei Group Sitai Mine,introduced the application of wheeled explosion-proof hydraulic mechanical floodgate on belt conveyor,also elaborated this equipment basic principle,design feature,function characteristic,and it has already succeeded in applying in Sitai Mine.

通过对同煤集团四台矿制动问题的分析研究，介绍了轮式防爆液压机械闸在带式输送机上的应用，并阐述了该装置的基本原理、结构特点和功能特点，现已成功应用于四台矿。

In other words, do you want the flower bed to be a four by four bed or a large eight by eight flowerbed?

换句话说，你想花床是由四个或四个大床上八乘八花？

All products are characterized with 1H-NMR. The products are used as PTC in the fluoridation of p-chloronitrobenzene, tetrachloroterephthaloyl chloride and N-benzyltetrachloridephthalimide to detect the performance of the different PTCs.

分别将上述化合物作为相转移催化剂应用于对硝基氯苯、四氯对苯二甲酰氯和N-苯基四氯邻苯二甲酰亚胺等化合物的氟化反应中，以检测各催化剂的催化性能。

The calixarenes used as PTC in the fluorination of tetrachlorophthahaloyl chloride to obtain dimethyl tetrafluoroterephthalate were studied in this paper.

研究了杯芳烃在四氯对苯二甲酰氯氟化制备四氟对苯二甲酸二甲酯反应中的相转移催化作用，发现以杯芳烃作相转移催化剂使产品收率得到了明显提高。

The propagation equation of Gaussian pulse is theoretical derived considering second-,third-,fourth-order dispersion.The influence of FOD on propagation properties of femtosecond Gaussion pulse in Single-mode optical fiber is mostly considered.

推导了考虑二、三、四阶色散的高斯脉冲传输方程；利用计算机数值模拟的方法，研究了四阶色散对飞秒高斯脉冲在单模光纤中传输特性的影响。

We have equipments as : Man Roland 700 five colors, Man Roland two colors, Heidelberg bisect four colors and full-auto paper pasting machine, full-auto high-speed box adhibiting machine, glazing machine, UV machine, film coating machine, bookbinding machine, full-auto foldout machine, bronzing machine, model machine…. We can do the best to meet any needs of craftwork, fit any multilayer printing.

公司主要印刷设备有：北人YP4890八色轮转机、C800商业轮转机、德国罗兰700五色、日本三菱四色、德国海德堡对开四色、罗兰双色、日本小森对开单色印刷机及全自动彩盒裱坑机、全自动大小粘盒机、过油磨光机、UV机、装钉机、台湾全自动多功能折页机、烫金机、复膜机、啤机等全套印刷前后工序设备多台，能满足客户各种工艺要求，适应各种多层次印刷，这是我们为客户提供高品质，高效率，优质服务的信心保证。

Compared diploid fodder beet with tetraploid fodder beet, tetraploid plants put up characteristics of bigger and thicker dark green leaf, more folds on leaf, stronger footstalk and so on .we can take those characters as the advancing index in testing tetraploid fodder beet.

饲用甜菜四倍体植株与二倍体植株相比，表现出叶片增大变厚，叶色浓绿，叶面多皱褶，叶柄粗壮等特点，可以将这些特点作为饲用甜菜四倍体田间初步筛选的指标。

Better is the life for one day of somebody who is seeing the highest Law.

注：至上法是指九出世间法，即：四道、四果及涅槃。

Five octaves above the intermezzo's end note, a fortissimo tirade pounces out of the sky, written in four-four-time but played in seven-eight (one-two-three-four-one-two-three etc.).

在间奏曲结束音的五个八度以上的地方，一段激烈的最强音腾空而起，它被记录在四四拍的谱上，但却以七八拍弹奏。

In 1849, after the announcement that gold was discovered in Sutter's Creek, 40,000 people, called forty-niners, traveled to California by sea.

在1849年，当苏特河( Sutter's Creek )发现金子的消息公布之后，有四万名被称为「四十九淘金者」(forty-niners)的人远渡重洋到加州淘金。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。