机械法：接头强度约为本体的35～40%，对滚筒有损害，只适用于织物芯层胶带。用于短距离且检修时间段的场合。

有钢卡连接、合叶连接、塔头铆钉连接，接头强度约为本体的80 ～90%。

塑化法：用于塑料带的连接，接头强度可达本体的75 ～80%。

氯厂胶粘结剂和氰酸酯固化剂配合法：速度快，接近本体强度。

am liebsten

lieber

liebe

gerne

防酸服

防毒面具

.防辐射服

.防毒服

正确

错误

防酸服

防毒面具

防辐射服

防毒服

防毒面具

防毒服

防酸服

防辐射服

钢筋接头宜采用焊接接头或机械连接接头

当普通混凝土中钢筋直径等于或小于20mm时,在无焊接条件时,可采用绑扎连接,但受拉构件中的主钢筋不得采用绑扎连接

焊接接头应优先选择气压焊

钢筋与钢板的T形连接,宜采用埋弧压力焊或电弧焊

机械连接接头适用于HRB335和HRB400带肋钢筋的连核

e nvironment

necessarily

allowed

cheated

international

admitted

hardly

necessary

joy

excitement K. difficulty L. communication A relative of mine once asked me:" Why should a Chinese take time to learn a language that is not his own?" Obviously he has___ 51 ____in learning a foreign language. He is not the only one who is mentally against English learning. One reason, as I suspect, is the way English is taught. The emphasis on memorization is such that no ___ 52 ____is left in the process, only endless irritation. What students are presented in the classroom is not the language in real-world ___ 53 ____. A Chinese student with extremely high scores for American standardized tests was ___ 54 ____ into one of the most famous universities. But his professors soon found out that he could___ 55 ____understand the lesson . Suspecting tha t he___ 56 ___in the tests, the school demanded he repeat them. Again, he passed with high scores. Not till then did they realize that the student had mastered the techniques for dealing with the tests, not___ 57 ____the skills of using the language. Many people take TOFEL, IELTS, GRE, annual Band 4 and Band 6 exams not because they work in areas where English is a____ 58 ___tool, but because they have to do it for job promotion or enrolment in certain programs. Must English learning be such a pain in the neck? Create a(n)___ 59 ___ where learning English is natural and painless. Don't make it compulsory for people whose work or major does not require it. China will not become more__60 ___ by adding millions of people who can only say a simple "Hello."