例句與造句

1. It is pivotal to improve the formation and distribution of carbides in the solidification microstructure of composite rolls of high speed steel
   采取必要的措施，預先改善鑄態(tài)高速鋼中原始碳化物的大小和分布在復合軋輥用高速鋼中是很為關鍵的。
2. On the base of the research of composition , the influence of modification with re , ti , mg , re - ti - mg ( wt , % ) on high speed steel of composite roll is investigated emphatically
   在對化學成分研究的基礎上，重點研究了利用re 、 ti 、 mg 、 re - ti - mg -進行變質處理對復合軋輥用高速鋼顯微組織的影響。
3. The high speed steel of composite roll is characteristic of high carbon and high alloy elements . so it is easy to form a lot of netlike carbides . these carbides which are very hard and fragile and are very difficult to be eliminated by heat treatment can depress the properties of high speed steel
   復合軋輥用高速鋼具有高碳和高合金的特征，容易形成大量網狀碳化物，這些網狀碳化物又硬又脆，會嚴重降低高速鋼的性能，且難以用熱處理的方法予以消除。
4. The composite roll of high speed steel has the synthetical life of over ten times more than traditional high cr cast iron roll . now the research and production of the high speed steel for roll are very drastic . in this thesis , the microstructure , heat treatment and performance of high speed steel fe - 2 % c - 4 % v - 4 % mo - 5 % cr - x % w ( wt ) are studied systematically by using metallograph , method of lattice , xrd , sem , eds and hardness
   本文利用金相法(包括黑白金相和彩色金相) 、 x射線衍射( xrd ) 、掃描電子顯微鏡( sem ) 、能譜( eds )及洛氏硬度分析儀等手段，對復合軋輥用高速鋼fe - 2 c - 4 v - 4 mo - 5 cr - x w (其它部分如未作特殊注明均為質量分數)合金系的顯微組織、熱處理工藝及性能進行了系統(tǒng)地分析。
5. During the recent years the breakthrough of manufacturing the new type of composite roll has been made . it is possible for the composite roll of high cr cast iron widely used at present to be replaced by the composite roll of high speed steel ( hss ) in the ten years
   近年來，將高速鋼用于制造新一代復合軋輥方面取得了突破性進展，高速鋼復合軋輥的綜合使用壽命可以比傳統(tǒng)用高鉻鑄鐵軋輥提高數倍以上，目前被廣泛采用的高鉻鑄鐵復合軋輥，有可能在十年之內被高速鋼復合軋輥取代。
6. It's difficult to find composite roll in a sentence. 用composite roll造句挺難的