[贸易] letter of guarantee

... legal guarantee法律保证，法律担保 letter of guarantee保证书；信用保证书 guarantee insurance保证保险，盗窃意外保险 ...

 bank guarantee

... surety bond保证书；保险公司出具的保函 bank guarantee; letter of guarantee银行保证书；信用保证书 letter of comfort安慰信 ...

 L/G

... leverage ratio 杠杆比率,举债比率 levy 征收 L/G 信用保证书 ...