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katathermometer｜卡他温度计rn
kbar｜千巴rn
Kelon｜科龙rn
kerosene fuel burner｜煤油燃烧炉rn
key board｜键盘rn
key…bolt｜销钉，键螺栓rn
kibbler｜破＇粉＇碎机rn
kick…back｜逆转；退还；回程rn
kicker baffle｜导向隔板rn
king bolt｜主销，大螺栓；旋转轴rn
knee bend｜角＇隅，斜＇撑rn
knee…braced bracket｜拐弯托座rn
knob｜按＇旋＇钮；手柄，球形把手；调节钮rn
KRUGER｜瑞士科禄格风机rn
KU BA｜德国库宝冷风机rn
label｜标记＇签，牌＇；分类rn
labile｜不稳定的，活泼的，滑动的rn
laboratory｜实验＇研究，试验＇室rn
laboratory hood｜实验室通风罩rn
labour｜劳动，工作；劳动者，熟练工rn
labour capacity｜劳动生产率rn
labour condition｜劳动条件rn
labour force｜劳动力rn
labour protection｜劳动保护rn
labour saving｜省力，节约劳动力rn
labourer｜工人rn
labyrinth｜曲径，迷宫；迷宫式密封rn
labyrinth box｜迷宫式密封箱rn
labyrinth seal｜迷宫式汽封rn
labyrinth trap｜迷宫式疏水器rn
labyrinth valve｜迷宫式阀rn
lag bolt｜方头螺栓rn
lag of controlled plant｜调节对象滞后rn
laminar sublayer｜层流底层rn
laminar tube flow｜管内层流rn
laminar…turbulent transition｜层流和湍流之间的过渡段rn
Lamont boiler｜拉蒙特锅炉rn
Lancashire boiler｜兰开夏锅炉rn
Lancashire two…flue boiler｜兰开夏双火筒锅炉rn
land boiler｜陆用锅炉rn
large space enclosure｜大容积密闭罩rn
latent heat｜潜热rn
lateral bending｜横向弯曲rn
lateral bracing｜横向支撑rn
lateral branch｜旁支管rn
lateral exhaust at the edge of a bath｜槽边排风罩rn
lateral hoodlength of pipe section｜侧吸罩rn
lay out｜平面布局rn
layout｜设计图rn
lb。｜Pound 磅＇英制计量单位，等于0。454kg（公斤）＇rn
lb。per sq。in。｜pound per square inch 磅/平方英寸rn
L…bar｜角铁，不等边角钢rn
LCD｜液晶显示rn
LDI｜lead design institute 设计院rn
lead block｜导向滑轮rn
lead burned joint｜铅焊接头rn
lead covered cable｜铅皮电缆rn
lead design institute｜设计院rn
leak test by filling water｜充水检漏试验rn
leakage test by filling water｜充水检漏试验rn
leaving air temp｜出风温度rn
leaving water temp｜出水温度rn
legend symbol｜图例rn
length of embedment｜埋入长度rn
length of pipe section｜管段长度rn
LEV｜local exhaust ventilation 局部排风rn
level bar｜水平尺rn
level of subsoil water｜地下水位rn
leveling blanket｜找平层rn
lewis bolt｜地脚螺栓，大头螺栓，棘螺栓rn
Liang Chi｜良机rn
liberal｜充足的，自由的rn
liberate｜释放，游离；析出rn
liberation｜释放，游离；析出rn
library｜图书馆；（程序）库rn
libration｜平衡，摆动rn
LIEBERT｜力博特rn
life belt｜安全＇保险＇带rn
light breeze｜轻风＇二级风，1。6…3。3m/s（米/秒）＇rn
light work｜轻作业rn
lime brick｜石灰砖rn
limit deflection｜极限压缩量rn
limit of flammability｜燃烧范围rn
limit of sensibility｜灵敏度极限rn
limit of stability｜稳定极限rn
limit switch｜限位开关rn
limiting velocity｜极限流速rn
line absorber｜线吸收，一定能级的离散吸收rn
line booster pump｜管线增压泵rn
line break｜输送管线断裂rn
line controller｜线控器rn
linear flow characteristic｜线性流量特性rn
linear vibration｜线性振动rn
lining board｜衬板rn
lining tube｜衬砌管rn
lintel bricks｜炉门顶砖＇用于煤气发生炉＇rn
liquefiable｜能熔化的，能液化的rn
liquid｜液体rn
liquid absorbent dehumidifier｜液体去湿装置rn
liquid pipe｜液管rn
liquid receiver｜贮液器rn
liquid subcooler｜液体过冷却器rn
liquid…level gage｜液位计rn
lithium bromide｜溴化锂rn
lithium bromide…water｜溴化锂…水rn
lithium chloride resistance hygrometer｜氯化锂电阻湿度计rn
lithium…bromide absorption…type refrigerating machine｜溴化锂吸收式制冷机rn
load distribution｜负荷分配rn
load pattern｜负荷特性rn
load vacuum pump｜中央集尘泵rn
loading bridge｜桥式起重机rn
lobby｜门厅，休息室rn
lobe｜叶片；凸起；凸角rn
local air conditioning｜局部区域空气调节rn
local air supply system｜局部送风系统rn
local exhaust system｜局部排风系统rn
local exhaust ventilation｜局部排风rn
local heating｜局部采暖rn
local relief｜局部送风rn
local relief system｜局部送风系统rn
local resistance｜局部阻力rn
local solar time｜地方太阳时rn
local ventilation｜局部通风rn
localized air control｜就地控制rn
localized air supply for air…heating｜集中送风采暖rn
lock bolt｜锁紧＇防松＇螺栓rn
lootive boiler｜机车锅炉rn
logarithmic normal distribution｜对数正态分布rn
logarithmic table｜对数表rn
logarithmic viscosity number｜比浓对数粘度rn
logical block｜逻辑单元rn
log…probability paper｜对数概率格纸rn
long sweep bend｜大曲率半径弯管rn
long tube vertical evaporator｜长管垂直蒸发器rn
long turn elbow｜长弯头rn
longitudinal bracing｜纵向支撑rn
longitudinal…drum water tube boiler｜纵汽包水管锅炉rn
long…radius bend｜大半径弯头rn
long…radius elbow｜大半径弯头rn
Lood vacuum pump｜中央集尘泵rn
loop｜环路rn
loss by burning｜烧损rn
loss by radiation｜辐射损失rn
loss of head due to obstructions｜阻障产生的水头损失rn
loss of head in bends｜弯管的水头损失rn
louver｜百叶窗rn
louver board｜百叶窗板，条板rn
low boiling｜低沸点的rn
low boiling point｜低沸点rn
low boiling point liquid｜低沸点液体rn
low flow observation｜低流量观测rn
low oxygen burning｜低氧燃烧rn
low pressure heating boiler｜低压供暖锅炉rn
low temperature break down｜内部损坏，低温损坏rn
low…ambient control｜低温环境控制rn
lowboy type fan coil｜矮形风机盘管rn
low…carbon｜低碳的rn
low…carbon steel｜低碳钢rn
lower bound｜下＇低＇界rn
low…frequency noise｜低频噪声rn
low…frequency vibration meter｜低频振动计rn
low…pressure air burner｜低压空气燃烧器rn
low…pressure ball tap｜低压球形旋塞rn
low…pressure boiler｜低压锅炉rn
low…pressure burner｜低压燃烧器rn
low…pressure steam heating｜低压蒸汽采暖rn
low…tension breaker｜低压断电器rn
LPHB｜low pressure heating boiler 低压供暖锅炉rn
lubarometer｜测大气压仪rn
lube｜润滑油，润滑材料；润滑rn
lube container｜润滑容器rn
lubricate｜润滑剂，润滑材料；润滑的；使润滑，起润滑作用，加润滑油rn
lubricating hole｜注油孔rn
lubricating…oil｜润滑油rn
lubrication｜润滑，润滑作用；润滑法rn
lubricator｜润滑器，加油壶；润滑剂；润滑工rn
lubricator adapter｜油管路＇润滑器＇接头rn
lug bolt｜长平头螺栓rn
lumber｜木材rn
lyophilic dust｜亲水性粉尘rn
lyophobic dust｜疏水性粉尘rn
M&E utility room｜机电设备房rn
M&E…mechanical and electrical｜机电专业rn
MAC｜maximum allowable concentration 最高容许浓度rn
mach number｜马赫数＇速度与音速的比值＇rn
machinable｜可机械加工的，可切削的rn
machine bolt｜机器螺栓rn
machine building｜机器制造；机器制造业rn
machine oil burner｜机械喷油燃烧器rn
machine steam jet refrigeration cycle｜蒸汽喷射式制冷循环rn
magazine boiler｜自动加煤锅炉rn
magazine box｜盒箱rn
magnesia brick｜镁（氮）砖rn
magnesite slab｜菱苦土板rn
magnetic ball…joint valve｜磁性球阀rn
magnetic blow｜磁力送风rn
magnetic switch box｜磁力开关箱rn
main｜总管、干管rn
main bearing｜主轴承rn
main boiler｜主锅炉rn
main burner｜主燃烧器，主喷嘴rn
main duct｜〔通风〕总管、〔通风〕干管rn
main pipe｜总管、干管rn
major bination｜全套rn
make up air handling unit schedule｜外气空调箱rn
make…up air unit｜新风机组rn
make…up water pump｜补给水泵rn
maldistribution｜分布不均匀，分配失调rn
male elbow｜外螺纹弯头，阳肘节rn
malleable｜韧性的，可锻的rn
malleable brick｜灰砂砖rn
malleable cast…iron｜可锻铸铁rn
malleable fit