The power plant is the heart of a ship.
鍔ㄥ姏瑁呯疆鏄埞鑸剁殑蹇冭剰銆?/p>
The power unit for driving the machines is a 50-hp induction motor.
椹卞姩杩欎簺鏈哄櫒鐨勫姩鍔涜缃槸涓�鍙?/p>
50
椹姏鐨勬劅搴旂數鍔ㄦ満銆?/p>
Semiconductor devices, called transistors, are replacing tubes in many applications.
鍗婂浣撹缃篃绉颁负鏅朵綋绠?/p>
,
鍦ㄨ澶氬満鍚堟浛浠ｇ數瀛愮銆?/p>
Cramped conditions means that passengers
鈥?/p>
legs cannot move around freely.
绌洪棿鐙獎
,
鏃呭鐨勪袱鑵垮氨涓嶈兘鑷敱娲诲姩銆?/p>
All bodies are known to possess weight and occupy space.
鎴戜滑鐭ラ亾锛?/p>
鎵�鏈夌殑鐗╀綋閮芥湁閲嶉噺骞跺崰鎹┖闂淬�?/p>
The removal of minerals from water is called softening.
鍘婚櫎姘翠腑鐨勭熆鐗╄川鍙仛杞寲銆?/p>
A typical foliage leaf of a plant belonging to the dicotyledons is composed of two principal parts: blade and
petiole.
鍙屽瓙鍙舵鐗╁吀鍨嬬殑钀ュ吇鍙剁敱涓や釜涓昏閮ㄥ垎缁勬垚
鍙剁墖鍜屽彾鏌勩�?/p>
Einstein
鈥?/p>
s relativity theory is the only one which can explain such phenomena.
鐖卞洜鏂潶鐨勭浉瀵硅鏄兘瑙ｉ噴杩欑鐜拌薄鐨勫敮涓�鐞嗚銆?/p>
All four (outer planets) probably have cores of metals, silicates, and water.
杩欏洓棰楀灞傝鏄熺殑鍐呮牳鍙兘閮界敱閲戝睘銆佺閰哥洂鍜屾按鏋勬垚銆?/p>
The designer must have access to stock lists of the materials he employs.
璁捐甯堝繀椤诲鏈夋墍浣跨敤鏉愭枡鐨勫偍澶囪〃銆?/p>
Part adjustment and repair must be performed on
regular basis if an acceptable printed product is to be the
end product.
瑕佷娇鍗板埛鍝佺殑璐ㄩ噺杈惧埌瑕佹眰
閮ㄤ欢璋冭瘯鍙婁慨鐞嗗氨蹇呴』瀹氭湡杩涜銆?/p>
The most important of the factors affecting plant growth is that it requires the supply of water.
妞嶇墿鐢熼暱鐨勫悇鍥犵礌涓渶閲嶈鐨勬槸姘寸殑渚涘簲銆?/p>
The doctor analyzed the blood sample for anemia.
鍖荤敓瀵硅鏍蜂綔浜嗗垎鏋?/p>
,
鐪嬫槸涓嶆槸璐鐥囥�?/p>
The apparent change in size of the sun is caused by dust in the air near the horizon.
澶槼鐨勫ぇ灏忕湅璧锋潵鏈夊彉鍖?/p>
,
杩欐槸鐢变簬闈犺繎鍦板钩绾跨殑绌烘皵涓湁灏樼矑鑰屽紩璧风殑銆?/p>
These fragments of rock and iron range from thousand kilometers in diameter to less than one.
杩欎簺鐭冲潡鍜岄搧鍧楃殑纰庣墖澶у皬涓嶇瓑
,
澶х殑鐩村緞鏈?/p>
1000
鍏噷
,
灏忕殑涓嶅埌
1
鍏噷銆?/p>
Manufacturing processes may be classified as unit production with small quantities being made and mass
production with large numbers of identical parts being produced.
鍒堕�犺繃绋嬪彲浠ュ垎涓哄崟浠剁敓浜у拰澶ч噺鐢熶骇銆傚墠鑰呮寚鐨勬槸鐢熶骇灏戦噺鐨勯浂浠?/p>
,
鍚庤�呭垯鏄寚鐢熶骇澶ч噺鐩稿悓鐨勯浂
浠躲�?/p>
Cartography is the science of making maps.
鍒跺浘瀛︽槸鐮旂┒缁樺埗鍦板浘鐨勭瀛︺�?/p>
Many elements in nature are found to be mixtures of different isotopes.
浜轰滑鍙戠幇鑷劧鐣岄噷璁稿鍏冪礌閮芥槸鍚勭涓嶅悓鐨勫悓浣嶇礌鐨勬贩鍚堢墿銆?/p>
The two units used most frequently in electricity are ampere and volt: this is the unit of voltage and that of
current.
鐢靛涓婃渶甯哥敤鐨勪袱涓崟浣嶆槸瀹夊煿鍜屼紡鐗?/p>
鍚庤�呮槸鐢靛帇鐨勫崟浣?/p>
鍓嶈�呮槸鐢垫祦鐨勫崟浣嶃�?/p>
That like charges repel but opposite charges attract is one of the fundamental laws of electricity.
鍚屾�х數鑽风浉鏂?/p>
寮傛�х數鑽风浉鍚告槸鐢靛鐨勪竴涓熀鏈寰嬨�?/p>
Almost any insulated body processes to some extent the ability to retain for a time an electric charge.
鍑犱箮浠讳綍涓�绉嶇粷缂樹綋閮藉灏戝叿鏈変繚鐣欑數鑽蜂竴娈垫椂闂寸殑鑳藉姏銆?/p>
The angular contact bearing provides a greater thrust capacity.
鍚戝績鎺ㄥ姏杞存壙鏈夎緝澶х殑杞村悜鎵胯浇鑳藉姏銆?/p>
The properties of the weld can be altered by varying the grain orientation.
閫氳繃鏀瑰彉鏅剁矑鐨勬柟鍚戝彲浠ユ敼鍙樼剨缂濈殑鎬?/p>
The spindle rotates simultaneously round two axes at right angles to each other.
閿瓙鍚屾椂缁曚袱涓簰鐩稿瀭鐩寸殑杞存棆杞�?/p>
The earth isn
鈥?/p>
t completely round; it is slightly flattened at the poles.